They have become very sure-footed.

他们的步伐变得非常稳健。

youdao

Many people in Beijing return to school only because they have become parents.

在北京，很多人回到学校只是因为他们成为了父母。

youdao

With the hills beyond our village becoming greener and greener, they have become home to a large amount of wildlife.

随着我们村庄后面的山丘越发郁郁葱葱，它们已经成了大量野生动物的家园。

youdao

They have become part of the English language.

VOA: special.2010.01.06

Perhaps because they have become wise in that they have learned they have moral choice. They have free will, they can defy God and God's plans for them in a way that animals and natural phenomena cannot.

也许是因为，他们在拥有智慧以后,明白他们有道德选择，他们有自由的意愿,可以反抗上帝为他们决定的命运,而这些事动物和自然无法做到的。

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They have become as different as they can be.

它们已经几近分化之能事

耶鲁公开课 - 生物医学工程探索课程节选

They have become as political as the editorial pages of the New York Times.

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They have become experts at making daily ends meet and not pondering the future.

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Rather than political change they have become a theater for rage, disappointment, and yearning.

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