late 14c., from Anglo-French vapour, Old French vapor "moisture, vapor" (13c., Modern French vapeur) and directly from Latin vaporem (nominative vapor) "a warm exhalation, steam, heat," of unknown origin. Vapors "fit of fainting, hysteria, etc." is 1660s, from medieval notion of "exhalations" from the stomach or other organs affecting the brain.
雙語(yǔ)例句
1. The two principal combustion products are water vapor and carbon dioxide.
兩種主要的燃燒產(chǎn)物是水蒸氣和二氧化碳。
來(lái)自柯林斯例句
2. The car windows were fogged with vapor.
車窗上滿是霧氣。
來(lái)自柯林斯例句
3. When nitric acid is poured on copper, a brown vapor gives off.