before单词相关例句：
Don't count your chicken before they are hatched. 不要过早乐观。
Don't count your chickens before they are hatched. 蛋未孵，别先数鸡。
Cast not your pearls before swine. 明珠莫投暗。
Rain before seven; fine before eleven. 雨过天晴。
Laugh before breakfast you'll cry before supper. 乐极生悲。
Laugh before breakfast and you'll cry before supper. 笑得早也会哭得早。
One hour's sleep before midnight is worth three after. 午夜前睡一小时抵得上午夜后睡三小时。
The golden age is before us, not behind us. 黄金时代是在我们前面而不在我们背后.
Learn to walk before you run. 循序渐进。
If each would sweep before his own door, we should have a clean city (or street). 众擎易举。
ago单词相关例句：

These palaces record were copied out three and a half thousand years ago by an egyptian scribe.

这些宫廷的记录是三千五百年前一位埃及的抄写员抄出来的。

From the point of view of evolution, men originated millions of years ago from the anthropoid, a species commonly referred to as the ape man.

从进化的观点来看，人类起源于几百万年前的类人猿，通常又称作猿人。

The warranty lapsed two months ago .

那项保证两个月前失效了。

直接引语 间接引语 now then ago before today that day this morning that morning yesterday the day before yesterday morning the morning before tomorrow the next day,the following day,the day after last week(month,etc) the week(month,etc) before next week(month,etc) the week(month,etc) after,the following week(month,etc) this week(month,etc) that week(month,etc) here there "I'll come and see you again this evening,Tom."he said.
直接引语 间接引语 this that these those now then ago before/earlier today that day yesterday the day before tomorrow the next/following day the day after tomorrow In two day’s time come go here there the day before yesterday two days before/earlier
yesterday the day before two days ago two days before
this day week 意为“一周后的今天”，类似地，this day year 则表示“一年后的今天”。比较：six months ago today 的意思是“半年前的今天”，10 years ago today 的意思是“10年前的今天”。
Many years ago there lived an old man in the wooden house.
It was about 600 years ago that the first clock with a face and an hour hand was made. 第一面带有一个钟面和一根时针的钟是在大约600年前制造的。
How long ago is it that you last saw her? 你上一次看见她是多久以前的事?