药物也许能杀死某些细胞，但是不能杀死所有的癌细胞，因为每个细胞都略有不同。

A drug might be able to kill some but not all of the cancer because each cell is a little different.

youdao

但是不能阻止用户继续填写表单。

But they should not hinder the user from continuing.

youdao

我原谅您，但是不能再这样干了。

I pardon you, but you will never do it again.

youdao

We cannot do anything about protons, they are buried in the nucleus, but we can add or subtract electrons.

我们不能改变质子，它们埋藏在原子核内，但是我们能够增加或减少电子。

麻省理工公开课 - 固态化学导论课程节选

Energy can flow across the glass but I put a lid on top, and so the water can't get out.

能量可以穿过杯壁流动,但是我在顶上加了盖子，所以水不能跑出来。

麻省理工公开课 - 热力学与动力学课程节选

In other words, of course the academicians and the Symbolists were obsessed with imagery, but that's not to say that a Russian formalist can't deal with imagery.

也就是说，我们知道形式主义者们对图像非常着迷，但是这不代表俄国的形式主义者们不能善用图像。

耶鲁公开课 - 文学理论导论课程节选