laughto和laughat的区别

laugh可以做动词，也可以做名词。
动词——及物动词。
1.以笑表示
He laughed his approval.
他以笑表示同意。
2.使笑得[O8]
We laughed ourselves hoarse.
我们笑得嗓子都哑了。
3.用嘲笑逼使对方[O]
The poor actor was laughed off the
动词——不及物动词。
笑;嘲笑[(+at)]
They laughed at their own failure.
他们对自己的失败一笑置之。
名词
1.笑,笑声[C]
She gave a hearty laugh.
她爽朗地笑了起来。
2.引人发笑的事情[S]
The funny book had a laugh on every page.
这本滑稽的书每一页上都有令人发笑的地方。
laugh at sb./sth.嘲笑, 漠视, 因...发笑
例如:
1.因(看见或听见)而发笑：
The students laughed at the funny story.
2.听了那个有趣的故事，学生们都笑了起来。
嘲笑；讥笑：
The suggestion he made was laughed at by the committee.
3.他提出的建议遭到了委员会的嘲笑。
漠视；对…一笑置之，对…付之一笑，对…不以为然：
In his childhood,he learned how to laugh at
difficulties.
在童年时，他学会了如何漠视困难。