But,they cannot order new ones until they return the ones they have.

VOA: special.2009.09.25

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

He's saying they're doing great work but they forget this one little thing: you cannot reconcile rhetoric and grammar.

他说的是，他们做得非常好,但是他们忘记了一个小问题，修辞和语法是不可能和解的。

耶鲁公开课 - 文学理论导论课程节选

They cannot support flight. But they work well for swimming.

VOA: special.2009.12.16

There were words in there--they said something--of course, we cannot guarantee that they won't go up in value but historically they have always done it or something like that.

他们在文中吹嘘...当然,我们不能保证金币不会升值,但金币的历史行情趋势始终向上

耶鲁公开课 - 金融市场课程节选

With the many stands available, patrons like Erin Gigliuzza say they cannot help but learn something new about the environment.

VOA: standard.2010.04.25

But City Councilor Mara Rumiz says authorities are aware they cannot ignore the problem of the shrinking population any longer.

VOA: standard.2009.11.14

"The American people believe in immigration,". "But they also believe that we cannot tolerate a situation where people come to the United States in violation of the law."

VOA: standard.2009.06.19

But,they note that mitigation and adaptation are linked and cannot be separated.

VOA: standard.2009.08.31

"But,it puts us in a very awkward position because,if we cannot go there ourselves to see what they are doing, to whom they are distributing and what criteria they are using, how much they are keeping for themselves, how much is getting lost, we start losing control over it,"

VOA: standard.2009.08.07