常見例句A cloud is a condensation of water vapour. 云是由水蒸汽凝縮而成的。A cloud is a mass of vapour in the sky. 云是天空中的水汽團。Water can be changed into vapour when heated. 水被加熱時,可以變成水蒸汽。It can change water into vapour. 它能把水變成蒸汽。The hot vapour spouted from a rusted pipe. 熱蒸汽從一個生了銹的管子里噴了出來。Then a brown vapour is given off. 這時會放出一種棕色的氣體。 返回 vapourizer