碰巧做某事用英语怎么说

"碰巧做某事" 的英文表达为 "happen to do something". 来源: 这个短语是由两个词 "happen" 和 "to" 组成的, "happen" 是指 "发生" 或 "碰巧", 而 "to" 是表示目的的介词. 所以, 整个短语的意思就是 "碰巧做某事". 下面是几个例句:

I happened to see her at the mall today. 我碰巧在商场里看到了她.

He happened to be in the right place at the right time. 他碰巧在正确的地点遇上了正确的时间.

She happened to have the exact same book as me. 她碰巧有我一模一样的书.