switch on v. 接通,打开(旋钮)之类的 相反: switch off 关闭 e.g Switch the radio on. 打开收音机. Turn on the switch. 打开开关. Flicked the light switch on. 把电灯开关按开 Switch on the light, please. 请开灯. Switch the light on , please. 请打开电灯. Please switch on the light, will you? For it is very dark here.
