开灯,关灯. 怎么说?

turn on the light.不能用open,因为open是指物理动作的开,比如说把灯拆了..
turn off the light.同理,也是不能用close的,close也是指物理动作上的.

turn on the light/turn off thelight

switch on the light/switch off the light

turn on the light
turn off the light/shut

turn on (开)the light turn off (关)the light

turn/switch on turn/switch off

light on
light off