[mass noun]a substance diffused or suspended in the air, especially one normally liquid or solid 蒸汽;汽;雾 dense clouds of smoke and toxic vapour. 成团的浓厚烟尘与有毒汽雾。 [count noun]petrol vapours. 石油蒸气。 ■[count noun](Physics)a gaseous substance that is below its critical temperature, and can therefore be liquefied by pressure alone (物)汽。 比较gas ■(the vapours)(dated)a sudden feeling of faintness or nervousness or a state of depression (旧)癔病性忧郁;郁气
verb
[no obj.]talk in a vacuous, boasting, or pompous way 吹牛;吹嘘;自夸 he was vapouring on about the days of his youth. 他不停吹嘘自己年青岁月。