turn off phr v 1 [T turn sth ↔ off] to make a machine, light etc stop working or stop the supply of water, electricity etc 关掉〔机器、电灯等〕; 关掉〔水、电等〕的开关: Turn off the television — it's dinner time. 关掉电视机 — 吃晚饭的时间到了。 2 [I,T turn off sth] to leave one road and drive onto another 转入另一条路; 驶离，转弯离开