1、The airconditioning sucks. I think it may be very old as it throws in damp air.
空調實在是糟透了，我想估計是太舊了，因為打開以后空氣都有股潮味兒。

2、They would need to install new airconditioning and insulation, new light fixtures and so on.
他們需要安裝新的空調和隔熱材料、新的照明設施固定裝置等等。

3、Yes, majority of people have airconditioning at home.
是的，大多數人家里都有冷氣。

airconditioning翻譯