经过几十年的不懈努力，中国已经发展到一个新的阶段。

It is through decades of hard work that China has progressed to a new stage.

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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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到那个阶段了吗？

Has that stage arrived?

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But by looking at the stages, we pick out a space-time worm that makes up a person.

但看着这个阶段，我们联想到组成那个人的,时空虫。

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So you, like, read Emerson, Melville - "Moby Dick", stuff like that.

所以，那个阶段，你能读到爱默生，还有《大白鲸》的作者梅尔维尔。

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And finally, there is regression, which is returning to an earlier stage of development.

最后，来说说退行，意思是回归到发展的某个早期阶段。

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