The main thing to remember is to switch off the burglar alarm.

最要紧的是记住关掉防盗报警器的开关。

《牛津词典》

And the main switch is that there will be less business in mono.

主要的改变是，单色的市场会变小。

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The main reason for the switch is not to help save the planet by reducing Gap’s carbon footprint, but to help save money.

造成这一转变的主要原因不是为了通过降低GAP的二氧化碳排放量来响应环保而是为了节省开支。

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In such schemes, the U.N. envisions itself manning the main switch.

FORBES: Keep An Eye On The U.N.

If more horsepower is needed, then the user can quickly switch into the main operating system, which Cloud continues to load in the background.

ECONOMIST: Google goes in search of an instant operating system

Not much is different on the Discover, with the exception of a new toggle switch on the main UI, which makes it pretty easy to go back and forth between the two modes.

ENGADGET: Pantech Discover review: a budget phone has never looked so premium