如果你想做成某事，你应该做什么？

What should you do if you want to succeed in doing something?

youdao

如果你想做邮递员，你应该要勤劳。

If you want to be a postman, you should be hard-working.

youdao

有句俗话说，如果你想做一件事，就请一个忙碌的人去做，看来也不无道理。

This is why there is a saying that if you want something done, ask a busy person to do it.

youdao

Characters are simple. Suppose you want to represent sets of strings, well you basically just generalize the hash function.

字母是是很简单的,如果你想表示一组字符串,基本上你要做的就是归纳出哈希函数。

麻省理工公开课 - 计算机科学及编程导论课程节选

but if you explain it to your friend that you or she should not have or should have done something,

如果你想要向你的朋友解释，或者她应该做某事的时候，

I should have 课堂 - SpeakingMax英语口语达人

But if you say, well, I don't know how to do this, I am not going to bother, don't grade the paper.

但是如果你说，好吧，我不知道怎么做这个，我想麻烦，别给试卷评分。

麻省理工公开课 - 固态化学导论课程节选