You could easily switch out database technologies, for example.
例如，可以轻松转换数据库技术。
He flicked a switch and all the lights went out.
他啪的一声按了下开关，灯全熄了。
The -n switch is used when you want explicitly to print out data.
当您想显式打印数据时，使用-n开关。
If so, the switch finds out which option it is.
如果是的话，则switch语句会找出它是哪个选项。
It is fun to switch out your accessories for different seasons.
在不同的季节更换不同的饰品是很有趣的。
I turn on a switch but the light had burnt out.
我打开电源，但电灯已经烧坏了。
When you go out, please switch off the TV.
当你出去时，请关掉电视。
Please switch out all lights as you leave the building.
离开这所房子时，请把所有的灯都关上。
Please switch out all lights as you leave the house.
你离开房子时，请熄掉所有的电灯。
Please switch out all lights as you leave the house.
你离开房子时，请熄掉所有的电灯。
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