Ante---before ;Post ---after
David’s antecedents came to this country more than a hundred years ago.
大卫的祖先一百多年前来到这个国家。
If the physician is busy when patients arrive,the nurse asks them to wait in the anteroom.
如果病人来的时候医生很忙，护士就请他们去接待室等候。
The purpose of a postmortem is to discover the cause of death.
验尸的目的在发现死因。
After signing the letter,I noticed I had omited an important fact.therefore,I mentioned it in a postscript.
在信上签名后，我发现漏掉了一件要紧的事，于是就把它记在附卷中。
If you used yesterday’s date on a check written today,you have antedated the check.
如果你在今日的支票上填写昨天的日期，你就提早了支票的日期。
Alaska antedates Hawaii as a state,having gained statehood on January 3,1959,seven months before hawaii.
阿拉斯加在1959年1月3日成为美国的一州，比夏威夷早了七个月。
This a postdated chek;it has tomorrow’s date on it.
这张支票的日期填迟了，上面的日期是明天的。
Our classes usually begin at 8 a.m.
我们的课程通常在上午八点开始。
At 4 p.m. the chairman announced the debate to be closed.
下午四点时主席宣布辩论结束。
Fter college,Mary hopes to do postgraduate work in law school.
大学毕业后，玛利想在法学院从事研究工作。