later,after,past有什么区别?

later
[ˈleitə]
adv.
较晚地; 后来
We later learnt that this wasn't true at all.
我们后来了解到根本不是这么回事。
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after
[ˈɑ:ftə]
prep.
(表示时间)在…以后
After the play they called for the author to show himself.
剧终之后他们请求编剧和大家见面。
(表示位置、顺序)在…后面
The King came in, with all his servants following after him.
国王走了进来, 所有侍从跟在他的后面。
(表示原因)由于, 鉴于
She succeeded in solving the problem after hard work.
由于努力干, 她终于解决了那个问题。
(表示条件)与…一致; 符合
He was built after his father.
他的体型像父亲。
(表示方式)像, 仿照
This box is made after a new pattern.
这箱子是仿照新样式制作的。
(表示依据)以…之名命名
The boy was named Tom after his grandfather.
这小孩按他祖父的名字被起名为汤姆。
(表示论及)关于; 涉及
He inquired after your health.
他询问你的健康状况。
(表示目标)追求, 追寻
There were always lots of men after her because