after
单词辨析：
强调位置、时间等顺序的先后。
The dog ran after the thief.
那只狗在追赶小偷。
Tom entered the room after his girlfriend.
汤姆跟着女友进入了房间。
When will you come? Next week or the week after?
你什么时候会来？下周还是下下周？
After you.
你先请。
多表示位置和方向的前后关系，或指必须做的事情在时间上落后。
At that time she was sitting behind me.
那时她坐在我的身后。
A huge lake formed behind the dam.
大坝后面形成了一个大的湖泊。
I had to work on the weekend because I fell terribly behind.
我工作落后太多了，不得不在周末加了班。
一般不与现在时间发生关系，故常和动词的过去时或过去完成时连用。
After school he went home.
放学以后，他回家去了。
She began her study after moving to London.
搬到伦敦后她开始了自己的学业。
He came to see me after he had arrived.
他到达后就来看我了。
〔辨析、例证〕
一般包含现在时间，故常和动词的一般时或完成时连用。
1、主句中动词用现在完成时，since 引导的从句中动词用一般过去时。
You've changed a lot since we last met.
自从上次我们见面以来，你变化好大啊。
Great changes have taken place in Beijing since 1985.
自1985 年以来北京发生了很大的变化。
2、主句中主语为 it，动词用一般现在时或一般过去时，since 引导的从句中动词须用一般过去时或过去完成时。
It is two years since we last parted.
我们上次分手以来已有两年了。
It was two years since we had last parted.
那时我们已经分手两年了。
相关例句：
They were after the money
他们想得到这笔钱。
I waited for news, day after day, expecting to hear.
我日复一日地等着，期待能听到消息。
After you left, we all missed you.
你走了以后，我们都很想你。
She used to mess up the floor and I had to clean up after her.
她过去常常把地板弄得很脏乱，而我不得不为她清理干净。
I felt much better after taking the medicine.
我吃了药以后好受多了。
Phillimore Island is named after Sir Robert Phillimore
菲利莫尔岛以罗伯特·菲利莫尔爵士的名字命名。