This is a conscious decision on her part, and you want to think about that decision.

她是有意识这样做的，你得想想她为什么会这么决定。

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Why? Because typically, you're doing that to use it somewhere else in the program.

为什么要这么做呢？因为你经常会在程序中,用到这一点。

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You might ask, well why do they do splits?

你可能会问,他们为什么要这么做呢

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Do you understand why we had to do this?

你知道为什么要这么做吗

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