vapour
(US vapor), / ˈveɪpə(r); `vepɚ/ n
1 [C, U] moisture or other substance spread about or hanging in the air 潮气; 水汽
the steamy vapours of a Turkish bath 土耳其浴的水蒸气.
2 [U] gaseous form into which certain liquid or solid substances can be converted by heating 蒸气: `water vapour 水蒸气.
3 the vapours [pl]
(arch or joc 古或谑) sudden feeling of faintness 突然的眩晕感
have/get (an attack of) the vapours 突然（一阵）头昏眼花.