It's not if they fight a lot.

不是他们吵架很多。

youdao

They cannot bring peace, not if they stay for 50 years.

他们带不来和平，就算在这里待上50年也带不来。

youdao

Perhaps, but not if they merely replace PCs for the same tasks we do now.

也许是，但如果他们只是在我们现在所作的同样的工作中取代PC，那就不可能。

youdao

Studies,however,suggest that they are still under the influence of the alcohol even if they do not feel that way.

VOA: special.2009.07.22

It's not if they fight a lot.

不是他们吵架很多。

耶鲁公开课 - 心理学导论课程节选

They've done some research. I'm not exactly sure if you can officially learn language from watching movies,

他们做了些研究。我不确定从官方的角度来讲，你是不是能够边看电影边学英语，

英语学习技巧 - SpeakingMax英语口语达人

It's OK if women advocate on behalf of the collective, but not if they champion themselves.

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Not if they happen to catch him on an off day--and he has his share of them.

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These periods of calm cannot go on forever especially, not if they belong to a volatile stock.

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