She installed a wall-mounted electric fan.

她装了一台墙壁式电扇。

He cools himself in front of an electric fan.

他在一个电扇前面吹凉。

An electric fan keeps the air circulating.

电风扇使空气流通。

Please turn on the electric fan to air the room.

请打开电风扇让房间通风。

I want to buy an electric fan.

我想买一台电风扇。