名词
中文翻译：数量
同义词：
['quantity', 'sum', 'total', 'quantity of', 'amount of']
例句：
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1. The amount ofmoney she spent on the car was a surprise to me.
她花在车上的钱让我感到惊讶。
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2. The total amount of the bill is $50.
账单总额为50美元。
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3. The amount of water in the bottle is enough for one person.
瓶子里的水量足够一个人喝。