1、发生：happen, take placehappen常指那些偶然的或未能预见的事情“发生”。

2、有时还可表示“碰巧；恰好”之意。

3、如： A terrible earthquake happened in Taiwan on the evening of October 31st. It happened that I had no money on me. I happened to meet my old friend in the street.take place通常指“（某事）按计划进行或按计划发生。

4、”此外还有“举行”之意。

5、如： Great changes have taken place in China. The sports meeting will take place next Friday.