happen to碰巧;偶然;强调事情的偶然发生
Accidents Happen不测风云;意外死亡;意外事件;意外风云
happen on偶然发现;偶然遇到或发现;偶遇
happen upon碰巧碰上;偶然碰到;偶然发现
sth happen发生某事
May happen可能会发生什么事;警告
happen afterwards继而发生
pulse happen脉冲发生
Never happen永远不会发生
As we know, events in real life always happen in certain contexts, in particular spaces and have certain timelines.
我们知道,现实生活中的事件总是在一定的语境中发生的,都发生在特定的空间中,都有着一定的时间脉络。
参考来源 - 空间叙事学Feijoa is strongly capable to tolerate extremely high temperature. No sunburn happen after over 30 days’s extreme maximum temperature above 35℃.
费约果具有极强的耐高温能力,在极端最高气温35℃以上、日数长达30 d以上,未发生日灼。
参考来源 - 费约果引种适应性及扦插生根机理的研究V-I（不及物动词） Something that happens occurs or is done without being planned. (偶然地) 发生
We cannot say for sure what will happen.
我们说不准将会发生些什么。
V-I（不及物动词） If something happens, it occurs as a result of a situation or course of action. (作为结果) 发生
She wondered what would happen if her parents found her.
她不知道如果父母发现了她会怎么样。
V-I（不及物动词） When something, especially something unpleasant, happens to you, it takes place and affects you. (尤指不愉快的事) 发生 (在某人身上)
If we had been spotted at that point, I don't know what would have happened to us.
如果那时我们被发现了，我不知道我们会有什么后果。
V-T（及物动词） If you happen to do something, you do it by chance. If it happens that something is the case, it occurs by chance. 碰巧
We happened to discover we had a friend in common.
我们碰巧发现我们有个共同的朋友。
PHRASE（习语） You use as it happens in order to introduce a statement, especially one that is rather surprising. 碰巧 (尤用以引出令人意外的内容)
He called Amy to see if she knew where his son was. As it happened, Amy did know.
他打电话给埃米，看她是否知道他儿子在哪儿。碰巧的是，埃米还真知道。