柯林斯詞典switch on (switching,switched,switches) 1. PHRASAL VERB If you switch on a light or other electrical device, you make it start working by operating a switch. 用開關(guān)開啟 She emptied both their mugs and switched on the electric kettle. 她倒空了他們倆的杯子，然后打開了電水壺。 返回 switch on