switch something on的意思|示意

There must be a way to make a request of that object so it will do something, such as complete a transaction, draw something on screen or turn on a switch.

在这里必须有一种方式去向对象发出一个请求，在对象收到请求后才能照指令去完成一个事务，在屏幕上打印一些东西，或是打开一个开关。

You don't need a light switch or a light bulb or an iPhone app to turn something on or off.

你不需要电灯开关、灯泡或苹果手机应用程序来打开或关闭某些东西。

Do you think it helps you on the pitch - to have something away from the game which means you can switch off sometimes?

有时稍稍放松一下，做点球场以外的一些事情，是不是会对你踢球更有帮助？