我无法告诉您，您的来信使我多么高兴。

I cannot tell you how much your letter delighted me.

youdao

没有个人、企业和其他社会组织的慷慨支持，我们就无法实现这个目标。

We cannot achieve the goal without generous support from individuals, corporations, and other social organizations.

youdao

你必须要去做你认为自己无法做到的事。

You must do the things you think you cannot do.

youdao

I wonder have any of you reflected on, I don't want to call it shadow side, is not domesticated.

不知道你们有没有人想过这个问题，我不想说这是自然的阴暗面，无法驯化的一面。

普林斯顿公开课 - 人性课程节选

So that's a big help. And equilibrium happens when there isn't any possible change of state that would satisfy this.

这个非常方便，当所有的变化,都无法满足这个公式的时候,系统就达到了平衡。

麻省理工公开课 - 热力学与动力学课程节选

Milton's not making just any idle suggestion that he will write a poem that future generations will find themselves incapable of forgetting.

弥尔顿不是仅仅在做一个无用的提议,他将写首后人无法忘却的诗。

耶鲁公开课 - 弥尔顿课程节选