come about

Question

come about的用法，它有什么不同的意思？

Answer 1

come about表示“发生、产生”，多指事情已经发生了，但还不知道为什么，常用于疑问句和否定句，例如：
When Mother woke up, she didn’t know what had come about.
I’ll never understand how it came about that you were late three times a week.
Do you know how the air accident came about?

Answer 2

come about
v. 发生；产生；实现，造成；（偶然）遇见或发现 ；改变方向
come about 也有 转身，转回 的意思， 但不常用。

come about
1．（of a ship or wind）change direction转向
It was so stormy that the ship had to come about and head for the harbour．风浪太大，船不得不调转航向，朝港口驶去。
2．happen；occur发生
How did it come about that the man is dismissed？那个人被解雇了，怎么回事？
The argument came about because they were talking about politics．争论是因为他们谈论到政治而引起的。
例句：
1. Any possible solution to the Irish question can only come about through dialogue.
任何解决爱尔兰问题的可行方案只能通过对话产生。
2. The truth is beginning to come out about what happened.
真相开始逐渐浮出水面。
3. They come to me to whine about their troubles.
他们到我这儿来不停地唠叨他们的烦恼。
4. You will recall that I sent you a warning of troubled times. Well now, almost everything I forecast has come about.
你还记得我警告过你时局会出现动荡吧。现在看来，几乎我预测的每件事都发生了。
5. In a few minutes he had come about into her seat.
几分钟后,他已经过来,坐在她的身边.
6.How does the bruise on your leg come about?
你腿伤是什么回事？（你腿伤是怎样发生的？）

Answer 3

发生,产生

例句与用法

1. How did this come about?
这是怎么发生的? 2. Layoffs designed to effect savings. Thus the sentence These measures may affect savings could imply that the measures may reduce savings that have already been realized, whereas These measures may effect savings implies that the measures will cause new savings to come about.
旨在完成存款的歇业。因而句子这些措施可能影响存款暗含这些措施可能减少本以已实现的存款，而这些措施可能完成存款则暗含这些措施将导致新的存款的产生 3. Expected or required but not yet having come about.
期待发生的被期望或要求但仍未发生的 4. How did it come about that he knew where we were?
他是怎么知道我们在什麽地方的呢？