The tires of the earliest cars were solid.

最早汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，整个世界都是了玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称网线数是因最早制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义是元伦理学中重要理论问题，艾耶尔情感主义理论则是20世纪非认知主义最早，但也是最具创新性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认物种变化是缓慢，但不是同样速度变化--一些如海豆芽一样生物从最早化石来未生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早期有关犹太可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒明促进了后膛装弹装置展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于什么我们没有现大量属于这个比寒武纪还要早时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最早汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，以为整个世界都是为而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早发起人是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数是因为最早制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义是元伦理学中重要理论问题，艾耶尔情感主义理论则是20世纪非认知主义最早，但也是最具创新性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化是缓慢，但不是以同样速度变化--一些如海豆芽一样生物从最早化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早期有关犹太人可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么我们没有发现大量属于这个比寒武纪还要早时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，他以整个世界都是了他玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最发起人是在英国残疾康复中心工吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一个最X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示最电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称网线数是因最制卡和会员卡制品网有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义是元伦理学中重理论问题，艾耶尔情感主义理论则是20世纪非认知主义最，但也是最具创新性和代表性重。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认物种变化是缓慢，但不是以同样速度变化--一些如海豆芽一样生物从最化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

期有关犹太人可靠历史记载，回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于什么我们没有发现大量属于这个比寒武纪还时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最早汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，他以为整个世界都是为了他玩乐而造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早发起人是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数是因为最早制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主是元伦理学中重要理论问题，艾耶尔情感主理论则是20世纪非认知主最早，但也是最性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化是缓慢，但不是以同样速度变化--一些如海豆芽一样生物从最早化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早期有关犹太人可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么我们没有发现大量属于这个比寒武纪还要早时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最早汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，他以为整个世界都是为了他玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早发起人是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数是因为最早制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认是元伦理学中重要理论问题，艾耶尔情感理论则是20世纪非认最早，但也是最具创新性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化是缓慢，但不是以同样速度变化--一些如海豆芽一样生物从最早化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早期有关犹太人可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么我们没有发现大量属于这个比寒武纪还要早时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请快打电话。

Please reply at your earliest convenience.

请信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，他以为整世界都是为了他玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

发起人是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数是因为制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义是元伦理学中重要理论问题，艾耶尔情感主义理论则是20世纪非认知主义，但也是具创新性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化是缓慢，但不是以同样速度变化--一些如海豆芽一样生物从化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

期有关犹太人可靠历史记载，要溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么我们没有发现大量属于这比寒武纪还要时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最早汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱和娇纵，他以为整个世界都是为了他玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早发起人是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔一个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·在巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数是因为最早制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义是元伦理学中重要理论问题，艾耶尔情感主义理论则是20世纪非认知主义最早，但也是最具创新性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化是缓慢，但不是以同样速度变化--一些如海豆芽一样生物从最早化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早期有关犹太人可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

于为什么我们没有发现大量属于这个比寒武纪还要早时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最早汽车轮胎实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第一次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时期宠爱，他以为整个世界都为了他玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早发起人英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征胃肠急性穿孔一个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特路易斯·吕米埃巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数因为最早制卡会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义元伦理学中重要理论问题，艾耶尔情感主义理论则20世纪非认知主义最早，但也最具创新性代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化缓慢，但不以同样速度变化--一些如海豆芽一样生物从最早化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早期有关犹太人可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么我们没有发现大量属于这个比寒武纪还要早时期化石，我无法给出满意答案。

The tires of the earliest cars were solid.

最早汽车轮胎是实心。

I was drawn to music from my earliest years.

我从小就对音乐感兴趣。

Please telephone at your earliest convenience.

请尽快打电话。

Please reply at your earliest convenience.

请尽早回信。

1859 Charles Blondin made the earliest crossing of the Niagara Falls on a tightrope.

查尔斯·布隆丹第次走钢索跨越尼亚加拉瀑布。

Cosseted and pampered from earliest childhood, he believed the world had been invented for his entertainment.

由于幼儿时宠爱和娇纵，他以为整个世界都是为了他玩乐而创造。

The earliest originator was Dr. Giterman who worked at the British Rehabilitation Center for the Disabled.

最早发起人是在英国残疾康复中心工作吉特曼博士。

Conclusion:Omental sac pneumatosis is an earliest X-ray manifestation of acute perforation of gastroentestine.

网膜囊积气征是胃肠急性穿孔个最早X线征象。

1895 The earliest demonstration of a celluloid cinematograph film was given at Paris by Auguste and Louis Lumiere.

奥古斯特和路易斯·吕米埃在巴黎演示最早电影片。

Known as the wire number is because the earliest business card printing and membership card making products mesh point there is wirelike.

称为网线数是因为最早制卡和会员卡制作品网点有线状。

Non-cognitivism is an important theory of Meta-Ethics, Ayer’s Emotivism is the most innovational and typical and earliest idea of Non-cognitivism in 20th.

非认知主义是元中重要论问题，艾耶尔情感主义论则是20世纪非认知主义最早，但也是最具创新性和代表性重要观点。

From the earliest region-position code, and then graphemic code to the very fashionable pinyin input method, it becomes wider, faster, intelligent and humanization.

从最早区位码、后来字形码再到风靡全国拼音输入法，其应用程度越来越广，输入速度越来越快，越来越智能和人性化。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认为物种变化是缓慢，但不是以同样速度变化--些如海豆芽样生物从最早化石以来未发生改变。

The earliest reliable historical records of the Jews date from around 1200 BC in unfortified villages in hill country far from Canaanite coastal cities.

早有关犹太人可靠历史记载，要回溯到大约公元前1200年，位于丘陵地带未设防村庄里，远离迦南海岸城市。

The earliest muzzle-loading rifles were more difficult to load than smoothbore muskets, but the invention of metallic cartridges made possible the development of breech-loading mechanisms.

最早前装步枪装弹比滑膛枪困难，但金属弹药筒发明促进了后膛装弹装置发展。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么我们没有发现大量属于这个比寒武纪还要早时化石，我无法给出满意答案。