某人碰巧做某事的英文

Someone happens to do something

碰巧───happen;某人───someone

There is no saying what may happen.───簡直不知今后情況會怎么樣.

Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things work.───研究者們拓展了其研究領域，介紹并揭示了事物發生的原因和機理。

It is reasonable to assume that he knew beforehand that this would happen.───有理由認為他事先就知道會發生這樣的事。

That doesn't happen very often.───那不常發生。

He couldn't help worrying obsessively about what would happen.───他禁不住時刻擔心將會發生的事情。

Lucy shut her eyes so she wouldn't see it happen.───露西閉上了眼睛，這樣就不會看到它發生了。

No one can foresee what will happen in the future.───誰也無法預見到將來會發生什么事.

Sales still happen, but buyers are more selective.───銷量仍在，但購買者更加挑剔。