The deal, if it ever happens, would create one of the world's biggest mobile operators, with 200m fixed and mobile subscribers across 21 countries.

如果谈判达成，将产生世界最大的移动运营商之一，拥有分布在21个国家的2亿固定和移动电话用户。

youdao

Change, if it happens at all, is reactive, in response to events, and rarely, if ever, proactive.

变化总是对一些事件的被动反应，很少有主动的变化。

youdao

One of the reasons why the Milgram experiment is so nice to know is that if this ever happens to you, not as an experiment but in real life, it will no longer be new to you.

其中一个原因,为什么我们都应该知道米尔格林姆实验,就是如果这种情况发生在你身上，我不是说实验，而是在现实生活中，你不再对这种情况一无所知。

耶鲁公开课 - 心理学导论课程节选

AIDS. That, if it ever happens, will require effective vaccines, and those are years away.

ECONOMIST: Even in Africa, it can be won

Turning Rio de Janeiro into the next Oslo or Houston is a decade away, if it ever happens at all.

FORBES: Brazil Economy, Get Ready For The Correction

We know that if it ever happens again we can do something about it to help ourselves rather than wait for someone who may not turn up because they're too busy elsewhere.

BBC: Burstwick ?3m flood defence finished