happened的意思介绍如下:
英/ˈhæpənd/。美/ˈhæpənd/。
v.
(尤指偶然)发生,出现;(作为结果)出现,发生;碰巧;恰好。
happen的过去分词和过去式。
All these changes happened over a period of time.
所有这些变化都是在一段时间内发生的。
You must on no condition tell them what happened.
你决不能告诉他们所发生的事。
This is the second time it's happened.
这已是第二次了。
You don't happen to know his name, do you?
你不会碰巧知道他的名字吧?
He gave me a guarantee that it would never happen again.
他向我保证这种事情绝不会再发生。
Who can say what will happen next year?
谁能说得出明年会发生什么事?