“生理上来看，你如果不踢世界杯是有好处的，”温格说。

"Physically, it is an advantage when you don't play at the World Cup," said Wenger.

youdao

你如果不试试能否侵入自己的防卫系统，又如何确信它是安全可靠的？

If you don't explore whether you can penetrate your own defenses, how can you know they're secure?

youdao

你时间紧吗？如果不紧的话，我建议我们一起吃午饭。

Are you pressed for time? If not, I suggest we have lunch.

《柯林斯英汉双解大词典》

When you don't have to worry about criteria like that ordinary, mechanical energy rules supreme, and that's dictating where equilibrium lies.

如果你不担心像这样的要求,通常的机械能就占据主要地位，并且决定平衡位于何处。

麻省理工公开课 - 热力学与动力学课程节选

I think if, you know, everyone sort of thinks about, I don't know, all being an entrepreneur. But if you're not,

我觉得，如果每个人都有做企业家的想法。
但是你如果不这样想，

要想成为事业家 - SpeakingMax英语口语达人

If you're pure, not only are meats and viands pure , but all kinds of knowledge, whether of good and evil.

如果你纯洁，不只是肉和食物，肉和酒会变得纯洁，所有的只是，无论善恶都会变得纯洁。

耶鲁公开课 - 弥尔顿课程节选