英语短语 shut off & turn off区别

turn off
关(自来水、电灯、收音机等)
Please turn off the light.请把灯关了.
shut off
切断,中断（供水、供气）
The electricity shuts off at midnight.
半夜电停了
shut off the hot water by closing a valve.
关上阀门从而阻断了热水