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vapour

n.蒸汽,水蒸气

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vapour为六级词汇

vapour


n
[U and C]
a mass of very small drops of a liquid which float in the air, for example because the liquid has been heated
 water vapour
1. Vapour can be changed into liquid by cooling.
    蒸气可以通过冷却变成液体。

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