What is the purpose of 它有什么用途
What is the purpose of all of this?
这一切的目的是什么?
What is the purpose of the fashion shows in New Orleans and Brooklyn?
新奥尔良和布鲁克林的时装表演的目的是什么?
What is the purpose of this passage?
这篇文章的写作目的是什么?
Now, the purpose of this exercise is to give you a little bit of practice in figuring out what these quantities are.
就有这样的结论,这个练习的作用时让你们理解,这些物理量是什么。
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