Dashan: Is the turn off on the right side or on the left side?

大山：岔道在左边还是在右边？

youdao

When we turn something on, we should remember to turn it off.

当我们打开某样东西时，我们应该记住把它关掉。

youdao

youdao

They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.

VOA: special.2009.04.07

We can actually see spatially all the details in the field animated as you turn the current on and off.

我们能看到,所有细节的空间动画分布,就在你打开电流和切断的时候。

麻省理工公开课 - 媒体、教育、市场课程节选

Well, if this kinase happens to turn this protein on then you would like to have a mechanism to turn it off as well.

那么在激酶激活蛋白质后,你会希望有一种方法能够使它失活

耶鲁公开课 - 生物医学工程探索课程节选

In January, the Department of Homeland Security issued an alert about the security-challenged software and recommended people turn it off on their computers.

CNN: Facebook hacked, says no user data compromised

Parents want to work, and work is the best way to engage them in training and learning - which in turn rubs off on their kids.

BBC: Work and training employment plans needed says author

So I ask you, in a moment of crisis, if somebody is able to turn off power on the East Coast or the West Coast or generally nationwide, what the response would be of the American public?

CENTERFORSECURITYPOLICY: Space power: What is at stake, what will it take