happen to be

基本解释

I happen to be a "morning person, " so I write early in the day.
我碰巧是个喜欢早起的人，所以总是在早上写作。
Which facts about evolution had to be true, and which just happen to be true?
关于进化的事实哪一些肯定是真实的，而哪一些碰巧是真实的呢？
goabroad.zhishi.sohu.com
If there are Jews who have very high positions in the media or in banking, they are doing it as individuals who happen to be Jewish.They are not doing it as part of some groups.
如果有犹太人在银行和媒体行业中职位很高，但他们也只代表个人，只是碰巧是犹太籍的人而已，他们并不代表一个团体来占领要职。

They are proof that the best thing that can happen to a man is to be born lucky.
However, if you do happen to be an English or a literature major or someone who's just very serious about reading at that level, you will find plenty to chew on here.
然而，如果你刚好主修英语或是文学,或是任何以主修的水平很认真阅读的人，你将会在这里发现很多值得咀嚼的东西。
耶鲁公开课 - 1945年后的美国小说课程节选
So wherever you happen to be, when you run out gas, there was a gas station close by.
这样无论你在哪里需要加油时,附近就会有一个加油站
耶鲁公开课 - 博弈论课程节选

Unfortunately for him, that someone happen to be working for the Feds and wearing a wiretap.
FORBES: What Insider Traders Should Avoid