为什么要用我的肘和脚呢？

Why use my elbow and foot?

youdao

如果这个模型显然没有考虑到量子力学，我们为什么要用它呢?

Why are we using this model if it clearly doesn't take into account quantum mechanics?

youdao

我们也讨论了我们为什么要用流行乐举例。

We've talked about why we use the pop music.

youdao

If you were searching for unique populations of cells within the bone marrow what tools would you use to look for them?

如果你要在骨髓中,找一组特定的细胞群,你用什么工具来找呢

耶鲁公开课 - 生物医学工程探索课程节选

Give you some examples. What have we talked about? We've talked about things like using comments to highlight what you're doing in the code, to make it easier to debug.

给大家举些例子,我们一直在强调什么来着？,我们讲过要用注释来说明,你在代码中进行的操作，以便于调试。

麻省理工公开课 - 计算机科学及编程导论课程节选

So I'm really just interested in how filmmakers make films for what motive they have in common, why they make them and how they choose to present reality.

所以我对电影制作者们,在制作电影时有没有什么共同的动机,他们为什么要制作电影，如何用电影反映现实,等方面很感兴趣。

麻省理工公开课 - 电影哲学课程节选