The author of the attack is still unknown.

仍然没有锁定此次袭击事件的幕后元凶。

Medical researchers suspected the deadly Marburg virus to be the culprit.

医学家曾怀疑高危的马尔堡病毒元凶。

DNA analysis revealed that Micrococcus bacteria were to blame.

而经DNA分析表明微球细菌臭味的元凶。

China says the United States is the biggest culprit in the world's refugee crisis.

中国表示，美国世界难民危机的最大元凶。

The Boko Haram terrorist group was blamed for the abductions.

博科圣地恐怖组织被绑架事件的元凶。

You just heard that Boko Haram is the group responsible for the kidnapping.

你只听说博科圣地集团这次绑架事件的元凶。

Diarrhea, pneumonia and malaria are the leading causes of death among young children in Ethiopia.

腹泻、肺炎和疟疾导致埃塞俄比亚儿童死亡的主要元凶。

The group was behind the recent attack on Nairobi's Westgate mall.

该集团最近内斯特盖特购物中心袭击事件的幕后元凶。

Climate change. It's the culprit behind an increase in droughts and floods, wildfires and storms.

气候变化——干旱和洪水、野火和风暴增加背后的元凶。

We support all efforts to bring those who ordered Munir assassinated to account.

我们支持所有将暗杀慕尼尔的元凶们揪出来的所有努力。

Authorities say, they don't know who's responsible for the deaths of the McClelland's and Hasse.

当局表示还不知道造成麦克利兰和哈斯死亡的元凶谁。

They said either South Africa or Renamo caused the crash.

他们说，南非和莫桑比克全国抵抗运动都不此次飞机失事的元凶。

As waste and disease piled up, Romans pointed to the stink as the cause of sickness.

随着废物和疾病的堆积，马人发现臭味疾病产生的元凶。

It is hay fever, an allergic reaction to pollen from trees, grass and other plants.

元凶其实花粉过敏症，这人们对草木以及其他植物的花粉产生的过敏反应。

And I might be able to find one of the culprits down here, although they're quite tricky to spot.

我也许能找到其中的一个元凶，虽然要找到它们有点棘手。

So was this the dinosaur responsible for the gash marks on the bones found at the Colorado site?

那么在科拉多石场找到的骨头上的沟痕元凶不就这种恐龙呢？

Could emulsifiers cause the same health consequences in humans and be behind some of the obesity trend?

而对于人类而言乳化剂否会引发同样的健康问题并且造成肥胖的幕后元凶?

Now, that's the terrorist group that was responsible for last month deadly attack in the shopping mall in Kenya.

现在, 这一恐怖组织就上个月肯尼亚购物中心致命袭击的元凶。

Methane gas, one of the culprits of global warming, is, ironically, a by-product of wet lowland rice cultivation.

具有讽刺意味的，全球变暖的元凶之一，甲烷，居然低洼的湿地水稻农业的副产物。

Scientists find likely culprit behind mystery child hepatitis outbreak — and Covid itself is NOT to blame.

科学家们发现了神秘儿童肝炎爆发背后的可能罪魁祸首——而新冠病毒本身不其中的元凶。