after

after, behind, at the back of

这些词均有“在……后面”之意。
after: 强调的是顺序的先后。

• the student sat after me.
  那个学生坐在我后面。(我坐在他前面)。
• who ruled after james i?
  詹姆斯一世之后是谁统治的?
• please shut the door after you.
  请随手关门。

behind: 在表示地点时侧重方向和位置的前后关系，在表示时间时侧重“落后……”或“迟于……”的概念。

• the student sat behind me.
  那学生坐在我背后。
• you are forty minutes behind schedule.
  你比规定的时间迟了40分钟。
• please shut the door behind you.
  请关上你身后的门。

at the back of: 这个前置词短语既可指具体的位置的先后，又可用于指抽象的概念。

形容词 after:

1. located farther aft

副词 after:

1. happening at a time subsequent to a reference time
   同义词：subsequently, later, afterwards, afterward, later on
2. behind or in the rear

1. His book is the best on the subject after mine.
   他的书对这一问题的论述是最好的，仅次于我的书。
2. We shall arrive soon after.
   我们将随后很快就到达。
3. Mr. Smith left for London after breakfast.
   史密斯先生吃过早餐后就动身去伦敦了。
4. He grew weak in after years.
   在以后的几年里，他变得衰弱了。
5. I found your coat after you had left the house.
   你离开房子之后，我发现了你的外衣。