1. throughout:
l)整个……时期：
Rain fell throughout the night.
雨下了一整夜。
They worked like that throughout the year.
整整一年他们都这样干。
He was a brave fighter throughout his life.
他英勇斗争了一辈子。
2)在全……：
Schools were opened throughout the country.
在全国兴办了学校。
The Fourth of July is celebrated throughout the United States.
整个美国都庆祝七月四日(国庆节)。
It is famous throughout the world.
它是全世界出名的。
2. till
l)直到：
The meeting lasted till midnight.
会一直开到午夜。
We'll have to wait till Monday.
我们得等到星期一再说。
Never put off till tomorrow what may be done today.
绝不要把今天能做的事拖到明天去做。(谚)
2)(用于否定句)直到……才：
We didn't know anything about it till yesterday.
我们到昨天才知道这件事。
She won't be free till nine o'clock.
她九点钟才有空。
They had not，till then，thought seriously of doing that.
直到这时他们才认真考虑这样做。
3)用于某些成语：
They worked together from morning till night.
他们从早到晚在一起干。
Up till now we’ve got no news from them.
迄今我们还未得到过他们的消息。
Good-bye till tomorrow.
明天再见。
We'd better leave it till next week.
我们最好留到卜星期再说。
They needn't have children，till later.
他们可以以后再要孩子。
I put off writing to you till today，that I might write at leisure.
我推迟到今天才给你写信，为的是能从容不迫地写。
