cannot but do的意思|示意

It sucks to say this, but everyone cannot do it.

这么说招人烦，但每个人做不到。

Whenever I do... I cannot but feel sad.

每当我做…？我就忍不住感到悲伤。

But a lot of people still cannot speak English well. What do you think the key problem is?

SAYBOT：在中国现在有越来越多的人在学习英语，但是有许多人学了许多年却仍然不会说英语，您觉得最大的问题在哪里？

But of course, those who haven't heard of Christ cannot do that.

当然，那些没听过的基督帮不到你。

But Mr Bush cannot bring himself to do that.

但是布什不能让自己那么做。

We cannot compel you to do it, but we think you should.

我们不能强迫你做这件事，可是我们认为你应该做。