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vapor

noun
🔊/ˈveɪpə(r)/
🔊/ˈveɪpər/
 (US English)
(British English vapour)
[countable, uncountable]
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  1. a mass of very small drops of liquid in the air, for example steam蒸气；潮气；雾气
    • water vapor水汽
    • The particles then form a vapor.颗粒然后形成蒸气。
    • There was a hissing sound, and clouds of vapor were emitted.发出嘶嘶声，并散发出蒸气云。
    Topics Weatherc1, Physics and chemistryc1