介绍:
1. If this is what takes to become a human, I will be the best cat that ever lived.
如果这是变回人类要付出的代价，我会当有史以来最好的猫。
David: I don’t know how he did it, building this company from scratch?
Madison: He never came home. That’s how he did it.
David: 我不知道我爸爸是怎么做到的，白手起家建立这家公司。
Madison:他从来不回家，就是这么做到的。
Take在这里是耗费，付出的意思
It takes Allen 20 Minutes to get to work.
此句型属于名词性从中的表语从句，以what引导。
Extension：
This is what i am interested in.
The doubt is who has got away with the document.
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