You don't happen to know his name, do you?

你不会碰巧知道他的名字吧？

《牛津词典》

Did you happen to see her leave last Wednesday?

上星期三你正好碰巧看见她离开？

《柯林斯英汉双解大词典》

Did you happen to be listening?

你碰巧在听吗？

youdao

However,because Hank's songs told of real-life troubles with such great emotion, something unusual began to happen to his music.

VOA: special.2009.11.22

Then there came to be questions about whether the scenes, the stories in the book, actually did happen to him.

于是问题出现了，书里的那些情节和故事是否真正在他身上发生过。

耶鲁公开课 - 1945年后的美国小说课程节选

Something I can measure and I can tabulate, and when I turn my dT knob here I know what's going to happen to the enthalpy.

----热容，我们可以用实验，测出热容并成表,当我知道这里的变量。

麻省理工公开课 - 热力学与动力学课程节选

It is not yet known what will happen to HMV's branches and 4, 350 staff.

BBC: Blockbuster goes into administration

"It blew my mind to think this could happen to someone like me, " Grant said.

CNN: Herbs, vitamins that can hurt you

Every place has its risks, and here they happen to fall from the sky.

CNN: One block, two tornadoes: Life in the crosshairs