when a shop/store, restaurant, etc. shuts or when sb shuts it, it stops being open for business and you cannot go into it （使）停止营业，打烊◆We shut at six. 我们六点打烊。
when a business shuts or when sb shuts it, it stops operating as a business 停业；停止营业◆We have been forced to shut several factories. 我们被迫关闭了几家工厂。
●shut up ˈshop () () to close a business permanently or to stop working for the day 关店；歇业 ●ˌshut ˈdown(about a factory, shop/store, etc. or a machine) to stop opening for business; to stop working （工厂、商店或机器等）关闭，停业，停止运转◆Sixty employees were laid off when the plant shut down. 工厂关闭时解雇了六十名员工。➡close , shutdown ●ˌshut sth ˈdownto stop a factory, shop/store, etc. from opening for business; to stop a machine from working （使）关闭，停业，停止运转➡close , shutdown ●ˌshut ˈoff(about a machine, tool, etc.) to stop working （机器、工具等）停止运转，关掉，切断◆The engines shut off automatically in an emergency. 紧急情况下，发动机会自动停转。●ˌshut sth ˈoff
to stop a machine, tool, etc. from working 关闭机器（或工具等）
to stop a supply of electricity, gas, etc. from flowing or reaching a place 切断供电（或天然气等）◆Always shut off the power before removing the machine's cover. 每次打开机盖前都要切断电源。
