“空调”常见的英文表达是 air conditioner 或 AC(缩写形式) ,也可用 air conditioning (表示“空调系统;空调设备”这一整体概念或指代空调的功能)。例如:
We need to fix the air conditioner; it's not working properly.(我们需要修一下空调,它不能正常运转了。)
Turn on the AC. It's so hot inside.(打开空调吧,屋里太热了。 )
The building has a modern air conditioning system.(这栋建筑有现代化的空调系统 。)