电风扇三档英语怎么说

电风扇三档英语是 "three-speed fan"。

这个短语的来源可以追溯到电风扇本身的发明。电风扇是一种用电动机驱动的机械设备，用来生产气流以制冷或排湿。电风扇通常有多种风速设置，可以通过调节电动机的转速来改变风速。因此，"three-speed fan" 指的是一种电风扇，其中有三种风速设置。

例句：

"I turned the dial on the three-speed fan to the highest setting to try to cool off my bedroom." (我把电风扇的三档拨片调到最高档，试图让卧室凉快一点。)
"The three-speed fan in the living room was a lifesaver on hot summer days." (客厅里的电风扇在热门夏天里救了我一命。)
"I accidentally broke the knob on my three-speed fan, so now I have to manually rotate the blades to change the speed." (我不小心把电风扇的旋钮弄坏了，所以现在我只能手动旋转叶片来改变风速。)