好词典

vapor

UK //ˈveɪpə(r)//US //ˈveɪpər//

词源

源自拉丁语 'vapor'(蒸汽、热气),14世纪通过古法语 'vapeur' 进入英语。

noun

❶ 指物质在气体状态下的微小颗粒,通常由液体受热蒸发或固体升华形成,如空气中的水蒸气或加热后产生的烟雾。

“The kettle was producing steam vapor as the water boiled.”

(水壶里的水沸腾时冒出蒸汽。)

“In cold weather, you can see your breath as vapor in the air.”

(寒冷天气里,你能看到自己呼出的气息在空气中形成雾气。)

❶ 比喻虚幻或不切实际的事物,常用于描述短暂易逝或缺乏实质内容的概念。

“His promises turned out to be mere vapor, with no real action behind them.”

(他的承诺最终只是空谈,没有任何实际行动。)

“The artist captured the vapor of childhood memories in her paintings.”

(艺术家用画作捕捉了童年回忆的缥缈感。)

同义词:steam, mist, fume, gas, haze

verb

❶ 指液体蒸发或转化为气体状态的过程,也用于描述事物逐渐消失或变得不真实。

“The morning dew will vapor as the sun rises higher.”

(随着太阳升高,晨露会逐渐蒸发。)

“Alcohol vapors quickly at room temperature.”

(酒精在室温下会迅速挥发。)

同义词:evaporate, volatilize, dissipate, fade, vanish

常见短语

water vapor — 特指水的气态形式,是大气中重要的组成部分,影响天气和气候。

“Water vapor in the atmosphere contributes to the greenhouse effect.”

(大气中的水蒸气会加剧温室效应。)

vapor trail — 飞机在高空飞行时排出的水蒸气凝结形成的白色条状云迹。

“The clear blue sky was marked by crisscrossing vapor trails from jets.”

(蔚蓝的天空中交错着喷气机留下的航迹云。)