vapor

名词 vapor:

1. a visible suspension in the air of particles of some substance
   同义词：vapour
2. the process of becoming a vapor
   同义词：vaporization, vaporisation, vapour, evaporation

1. Something, such as air or vapor, that is exhaled.
   散发物以气体或蒸汽形式发散出的东西
2. Producing or turning to vapor.
   形成蒸气的产生或变成蒸汽的
3. Water can be changed into vapor when heated.
   水被加热时，可以变成水蒸汽。
4. A cloud is a mass of vapor in the sky.
   云是天空中的水汽团。