一旦地球经历了其形成的最后阶段，气体就会鼓泡到地表，并被地球的重力场控制，形成大气。

Once Earth had gone through the final stages of its formation, gases bubbled to the surface and were held by Earth's gravitational field to form the atmosphere.

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学习了解食物的不同阶段，并知道如何正确烹调它们。

Learn to know the different periods of foods and know how to cook them in the right way.

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青少年处在向成年阶段转型的过渡期，这一阶段需要他们进行独立思考并独立做出选择，因此他们有时候会感到迷茫。

Being in transition to adulthood requires teenagers to think and make choices independently, so they might sometimes feel lost.

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Retroviruses, for example, can only insert - can only transduce and express their DNA in cells that are dividing.

就以逆转录病毒为例,它们只能在分裂阶段的细胞里,转导并表达自己的基因

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But the Phase 1s and Phase 2s, they're not exactly the same for everyone.

但是第一阶段和第二阶段，对每个人来说，并不是完全一样的。

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OK. Now, fortunately we're not going to start with Turing's six primitives, this would be really painful programming, because they're down at the level of, "take this value and write it onto this tape."

好了，现在，幸好我们能开始讲述,图灵的六个基本类型了，这会是非常痛苦的编程，因为它们只在这个阶段上，“拿到这个结果并写在这一卷磁盘上“

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