1 N-VAR 总数；总额 The amount of something is how much there is, or how much you have, need, or get. 总数；总额
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He needs that amount of money to survive. [+ of]
他需要那样一笔钱以生存下去。
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I still do a certain amount of work for them. [+ of]
我仍然为他们做一些工作。
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Postal money orders are available in amounts up to $700.
邮政汇票的金额最高可达700美元。
SYN quantity, lot, measure, size
2 VERB 合计；共计 If something amounts to a particular total, all the parts of it add up to that total. 合计；共计
3 PHRASE 大量 If you say that there is any amount of something, there is a lot of it. If you say that there are any amount of people or things, there are many people or things. 大量
Usage Note :
You should avoid using a plural noun after amount of instead you should use number of with a plural noun. ...the number of people out of work.
amount of后不用复数名词，而number of后要用复数名词：the number of people out of work（失业人数）。
| Usage | amount and number |
| Number is used to talk about how many there are of something: Madhu was surprised at the large number of students in the class. Amount is used to talk about how much there is of something: There is only a small amount of water in the glass. |
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