If not for John, Brian wouldn't have learned the truth.

要不是约翰，布莱恩不会了解真相。

《柯林斯英汉双解大词典》

If not for this small optimization, we would go through every element twice.

如果不是由于这个小小的优化，我们将遍历每个元素两次。

youdao

I might not have met some if not for this job, and I've learned a lot about how people behave in these years.

如果不是因为这份工作，我可能不会遇到一些人，这些年来，我对人们的行为举止也了解了很多。

youdao

But many more would have died if not for a tsunami warning from the Japanese Meteorological Agency.

VOA: special.2011.06.07

If you want to control a program file, open, copy, paste not get me ready for my trip to Stanford.

如果想要掌控一项程序文件，打开，复制粘贴，并不会铺平通向斯坦福的路。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

This is really, I think, a radical if not heretical idea for the national poet of a Christian people.

我真的觉得这是，激进的，甚至是异端邪说,对一个基督教国家的诗人来说。

耶鲁公开课 - 现代诗歌课程节选

The decline in commodity ETPs assets would have been worse if not for the precious-metals sector.

FORBES: ETF Securities: Precious-Metals ETPs Attract Money Inflows In 2Q; Overall Commodity ETP Market Declines

It might not have been so if not for the foresight of President Dwight D.

FORBES: Thinking Outside the Brackets: New Priorities Key to Securing America's Sci-Tech Future

Projects like OpenStack would not exist if not for his contributions to the sector.

FORBES: A Few Early Cloud Computing Mavericks