你不能指望我挥动一下魔杖，便一切又平安无事了。

You can't expect me to just wave a (magic) wand and make everything all right again.

《牛津词典》

我想具体说明一下我原先的话—我没有说他不能担任这工作，只是说他需要指导。

I want to qualify what I said earlier—I didn't mean he couldn't do the job, only that he would need supervision.

《牛津词典》

通常情况下，我不能在外很晚不归。

I'm not normally allowed to stay out late.

《牛津词典》

We cannot say writing came into being belatedly with respect to speech in order to reproduce, imitate, or transcribe speech.

我们不能说书写比演讲产生得更晚,是为了复制，模仿，或者是记录下演讲的内容。

耶鲁公开课 - 文学理论导论课程节选

You don't want to just ignore it, but in cases like that, it's usually a small fraction of the total.

你不能直接把它忽略掉,但在像这样的情形下，它一般是。

麻省理工公开课 - 热力学与动力学课程节选

There's no way that we can get from here, to here, to here without knowing a little bit more information.

我们不能直接从这里到这里，在没有更多信息的情况下。

麻省理工公开课 - 固态化学导论课程节选