例句：
Yes, majority of people have airconditioning at home.
是的，大多数人家里都有冷气。
The airconditioning sucks. I think it may be very old as it throws in damp air.
空调实在是糟透了，我想估计是太旧了，因为打开以后空气都有股潮味儿。
They would need to install new airconditioning and insulation, new light fixtures and so on.
他们需要安装新的空调和隔热材料、新的照明设施固定装置等等。
Secondly, when we leave our house or classroom, we would better turn of the lights, fans or airconditioning.
其次，当我们离开我们的房子或教室时，我们最好把灯，风扇或空调关了。