turn something on

Từ điển Oxford Advanced Learner 8th

ˌturn sthˈon derived
to start the flow of electricity, gas, water, etc. by moving a switch, button, etc
•to turn on the heating
• I'll turn the television on.
• (figurative) He really knows how to turn on the charm (= suddenly become pleasant and attractive).
Main entry: ↑turn_derived