虽然没有说话，但两人都知道必须要做什么。

Though no word was spoken, both knew what must be done.

youdao

爱德声称：“我相信我们必须减少赤字，但这不是我们必须要做的一切。”

“I believe that we have to reduce the deficit, but that is not all we have to do, ” he said.

youdao

这个要比我们之前的版本长很多，但这主要是处理远程目录不存在的时候必须要做的异常检查造成的。

That's substantially longer than our previous revisions, but this is mostly due to the exception checking which must be done to handle remote directories that may be missing.

youdao

All right, so I did this not at all purposely, but this can point out for you that you need to make sure that the number of electrons that you have in your molecular orbital does match up with the total number that you have in your atomic orbitals.

我并不是故意这么做的，但这告诉我们必须要保证,分子轨道里的电子数,和原子轨道里的,总电子数能对上。

麻省理工公开课 - 化学原理课程节选

But in order to do so, you have to use terms like "punishment" and "reward" and "reinforcement" in such a vague way that in the end you're not saying anything scientific.

但如果你要这样去做，你就必须将惩罚，奖励“,强化之类的术语概念模糊化,最终你所作出的解释便毫无科学性。

耶鲁公开课 - 心理学导论课程节选

We make software; we make technology; we're innovative ,but so are they So, what we really have to do is become a lot more productive and we have to make our companies a lot more competitive. Today, I feel we're losing that edge.

我们生产软件；发展工业技术;,我们有创新能力，但他们也有,所以，我们现在必须要做的就是提高生产效率,我们必须提高我国公司的竞争力,现在，我觉得在这方面我们正在丧失竞争优势。

耶鲁公开课 - 金融市场课程节选