air cooler

例句：

1. 1. This air cooler is very efficient at cooling large spaces.
   这款空气冷却器在冷却大型空间方面非常高效。
2. 2. The office needs an air cooler to keep the air fresh and cool.
   办公室需要一台空气冷却器来保持空气新鲜和凉爽。
3. 3. We installed a new air cooler in our living room to improve the temperature control.
   我们在客厅安装了一台新的空气冷却器，以改善温度控制。