办信用卡的利弊:解释while！

给你来实惠点的，句子，+while，句子，并列
while+句子， 有when的意思，可以用when ,替换，

如果考试这就够用了

n.
1. 一会儿,一段时间[S]
I'll be back in a while.
我一会儿就回来。
conj.
1. 当...的时候,和...同时
She listened closely while he read the letter.
他读信时,她听得很仔细。
I'll take care of your children while you are away.
你不在时我会照顾你的孩子的。
We must strike while the iron is hot.
我们必须趁热打铁。
2. 而,然而
I like tea while she likes coffee.
我喜欢喝茶,而她喜欢喝咖啡。
3. 虽然,尽管
While I like the color of the hat, I do not like its shape.
虽然我喜欢这顶帽子的颜色,但我不喜欢它的形状。
4. 只要
vt.
1. 消磨(时光),轻松地度过[(+away)]
He whiled away the whole afternoon watching TV.
他看电视消磨了一个下午。

while
[(h)wail]
n.
一会儿, 时间
conj.
当...的时候, 虽然
vt.
消磨
prep.
<古><方>直到

翻译成当
i was eating while he takes a break
当他休息时，我在吃饭

翻译成而
He insists that it is the worst marriage while she dissagree.
他坚持这是一场糟糕的婚姻，而她不同意。

1. 当...的时候,和...同时
She listened closely while he read the letter.
他读信时,她听得很仔细。
I'll take care of your children while you are away.
你不在时我会照顾你的孩子的。
We must strike while the iron is hot.
我们必须趁热打铁。
2. 而,然而
I like tea while she likes coffee.
我喜欢喝茶,而她喜欢喝咖啡。

while: [ (h)wail ]

conj. 当...的时候
n.&a. 一会儿
vt.&v. 消磨

例句与用法:
1. I haven't seen him for a long while.
我已经很久没见到他了。

2. While Mary was writing a letter, the children were playing outside.
玛丽写信时，孩子们在外面玩耍。

3. She worked in a bank for a while before studying law.
她学法律之前在银行工作过一段时间。

4. I lived in a hostel while I was a student.
我求学期间住在青年招待所里。

5. For a long while we had no news of him.
很长一段时间我们没有他的消息.

6. He fell asleep while (he was) doing his homework.
他做著做著功课就睡著了.

7. We whiled away the time at the airport reading magazines.
我们在机场阅读杂志消磨时间.

8. He listens to the radio while driving to work.
他去上班一边开著车一边听音乐.