switch on

US /swɪtʃ ɑːn/
UK /swɪtʃ ɑːn/
"switch on" picture
1.

打開, 開啟

to turn on an electrical device or light

:
Please switch on the light.
打開燈。
I need to switch on my computer to start working.
我需要打開電腦才能開始工作。