They definitely watch others as they make tools.

它们在制作时肯定是看了其它的鸟的。

It's a tool you can make yourself to take the stress out of studying.

这是一个你可以自己制作的，以消除学习的压力。

Sometimes they even took unshaped rocks with them to make into tools later on.

有时他们甚着不成形的石块，以便在日后把它们制作成。

They were, in a word, devoted to the technology.

一句话，他们非常痴迷于这种制作。

They made tools out of stone, bone and wood.

他们用石头、骨头和木头制作。

Think train building kits, specialty albums to store all of your rare baseball cards in and magazines full of sewing patterns.

比如制作包，用专门的相来存放你稀有的棒球卡，还有满是缝纫图案的杂志。

People who make content with new tools that let you reach bigger audiences on LinkedIn.

也就是用新制作内容，让你在 LinkedIn 上接触到更多受众的人。

I stopped my work to make these tools.

我停止了制作这些的作。

He made his own veterinary tools.

他自己制作兽。

Was it in making things like this that we learned how to talk to one another?

我们是否在制作类似这样时学会了彼此用语言交流？

Fortunately, however, ancient men made tools of stone, especially flint, because this is easier to shape than other kinds.

然而，幸运的是，远古人用石头制作了，特别是用燧石，因为燧石较之其他石头更容易成形。

Now beyond that, we also have we also have built tools to go through your public profile, for example.

除此之外，我们还制作了一些来浏览你的公开资料。

He also made the tools that made them, except for the lathes and turning engines.

连用来制作这些零件的都是他自己做的——用来发动引擎的车床除外。

In other words, people used fire, engaged in hunting and gathering and made simple stone tools.

换句话说，人们使用火，从事狩猎和采集，制作简单的石制。

Workers performed a wide range of tasks, from crafting tools and clothes to administrative work to back-breaking manual labor.

人们执行的任务范围很广，从制作和衣服到行政作再到繁重的体力劳动。

Known as " molcajetes" in Spanish, these bowl-like objects are the basic tool for making salsas.

这些碗状物体在西班牙语中被称为“molcajetes”，是制作沙拉的基本。

Doctor Daniel Kraft from the United States makes gadgets for people like this.

来自美国的丹尼尔·卡夫特（Daniel Kraft）生为这样的人制作小。

They were master of flintknappers meticulously chipping and sharpening pieces of flint to make spears and cutting tools.

他们擅长用打火石精细雕刻，用尖利的碎石片制作长矛以及削制。

The making of these tools ook me four days.

这些的制作让我花了四天时间。

Shoemakers use leather, thread, and special tools to make shoes.

鞋匠使用皮革、线和特殊来制作鞋子。