quan·ti·ty

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【词性】：n．

【释义】：

❶ 量：a change in quantity 量变．Mathematics is the science of pure quantity．数学是研究纯量的科学．❷ 数量：a large(small) quantity of sugar大(少)量的糖．What quantity do you want?你要多少?❸ (常pl．)大量，大宗：grain and cotton in large quantities大量的粮食和棉花．We’ve had quantities of rain this summer．今年夏季雨量很大．❹ 【数】量：an unknown quantity 1)未知数．2)【喻】行为不可捉摸的人．