phrasal verbphr vSWITCH ON OR OFFto turn on a machine, light, radio etc using a switch 〔用开关〕开,打开
switch something ↔ on
He switched the torch on.
他打开了手电筒。
5When a tape is put in the VCR, it switches on automatically .
录像带放进录像机后,它会自动播放。
nThe lights switch on automatically when it gets dark.
Examples from the Corpus
switch on• Do you mind if I switch the light on?• Exhaustfumes come into the car when I switch on the airconditioner.• I switched on the radio to listen to the news.• Will you switch on the television?