persist用法
楼上去字典上招来的吧?复制了一大堆。
区分insist和persist,都是坚持,有什么差异?

insist=in + sist,“坚持做一件事”,搭配insist on
persist=per (through)+ sist,“坚持反复做同一件事”,搭配persist in
happen to 的用法
happen to do sth.碰巧干某事
Oh, I happened to pass by.我那时刚巧路过。
happen to sb. to是介词,某事发生在某人身上
He is so poor;bad things always happen to him.
他真可怜,不幸的事情总是降临到他头上。对…产生影响
A bad accident happened to that family?
你听说大卫昨天晚上发生什么事了吗happen to
发生(某事件).
那个家庭发生了不幸的事情。
Did you hear what happened to David last nighthappen to
发生在…人身上
happen to meet
happen to say
偶然提到这个词用时无被动
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