1·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。
—— 《柯林斯英汉双解大词典》
2·He is truly outraged about what's happened to him.
他确实为发生在他身上的事情而震怒。
—— 《柯林斯英汉双解大词典》
3·What happened to them remains somewhat of a mystery.
他们到底出了什么事，到现在仍可以说是个谜。
—— 《牛津词典》
4·I happened to bump into Mervyn Johns in the hallway.
我碰巧在走廊里撞见了默文·约翰斯。
—— 《柯林斯英汉双解大词典》
5·She snarled abuse at anyone who happened to walk past.
谁碰巧走过，她就冲谁叫骂。
—— 《牛津词典》
6·"What's happened to her?"—"I'm sure she won't be long."
“她出什么事了？”— “我肯定她马上就到了。”
—— 《柯林斯英汉双解大词典》
7·He happened to be looking through the medical book "Gray's Anatomy" at the time.
他那时碰巧在看《格雷氏解剖学》这本医学书。
—— 《柯林斯英汉双解大词典》
8·The lady happened to be Kevin's mother.
这位女士碰巧是凯文的母亲。
9·Nothing has happened to them, has it?
他们什么事也没发生，是吗？
10·It happened to me just as it happened to you.
这事在我身上发生了，正如发生在你身上一样。