打开“不”

turn on───v.打开；发动；取决于；使兴奋；攻击

turn out───v.（以某种方式）发生；最后是，结果是；出席，参加，前去观看；关掉，熄灭（电灯、煤气等）；生产，制造

turn against───反对；背叛；（使）变成和…敌对

turn of mind───性情；气质倾向，才能

turn over to───移交给；转交给

turn of events───形势的变化

turn on a dime───转硬币决定；灵活

Please do NOT turn on A/C as soon as you enter the car.───你进入车内时，请不要马上打开汽车的空调。

Do not turn on and off it frequently and try to avoid making it work for a long time.───不要频繁地打开和关闭，并尽量避免它的工作很长一段时间。

It is not uncommon for a machine to take several minutes to turn on and yet not require a restart for the next calendar year.───这并非罕见的机器需要几分钟时间来打开，但不要求重新启动的下一个日历年。