因此，对于会做的题目，要力求一次做对。

Therefore, for will do topic, to strive to do at a time.

youdao

所有的事情第一次做对。

Do the right thing the first time.

youdao

以有呼必应，分秒必争，珍视托付，一次做对的敬业精神；

By has shouts must be supposed, seizes every second and minute, to treasure entrusts, one time does to professional dedication;

youdao

Cause there, you're only dividing the problem in half and half, and half and half, we are doing that here.

因为在那个例子中，只需一次又一次地,对问题进行划分，在这儿我们也是这样做的。

哈佛公开课 - 计算机科学课程节选

Once each time. Right? I only do one swap potentially, it-- though not one potentially, each time at the end of the loop I do a swap.

每次循环做一次，对么？我其实,就可能做了一次交换，也许并不是可能，每次循环的结束我都得做一次交换。

麻省理工公开课 - 计算机科学及编程导论课程节选

So they're optional, but they're very, very, very highly encouraged that you do these, because this is going to give you practice for the types of problems that are going to be on the exam.

虽然它们是选做的，但是它们非常非常，非常值得你们去做，因为这对你们来说是一次训练,是用来熟悉考试题型的。

麻省理工公开课 - 化学原理课程节选