This is not invariably the case.

事情并非总是如此。

《牛津词典》

This is not strictly true.

这不完全正确。

《牛津词典》

This is not one of their stated aims.

在他们宣布的目标里没有这一条。

《牛津词典》

But this is not a way to immediately transfer to four-year colleges and universities in other countries, including the United States.

VOA: special.2009.06.18

This is not a wasteland of thought by any means, and the Russian formalists are an important part of what's going on.

俄国并不是一座思想的废都，形式主义者是思想界很重要的一个部分。

耶鲁公开课 - 文学理论导论课程节选

And we'll talk about this more, so if this is not completely intuitive, we'll see why in a second.

关于这个我们将会讨论更多，所以如果这个不是完全凭直觉获知的，我们一会儿再来看看为什么。

麻省理工公开课 - 化学原理课程节选

This is not a time to think about making substantial cuts in police numbers.

BBC: UK riots: Trouble erupts in English cities

But this is not simply another example of the kind of Puritanism which bemuses non-Americans.

BBC: General David Petraeus: A huge loss for US

This is not the first time a study has shown a benefit in preventing the risk of cancer.

FORBES: Can Cholesterol Drugs Prevent Cancer?