想想一个灯的开关吧。
这时打开你房间的电灯开关。
I felt the wall for a light switch.
我在墙壁摸索着找电灯开关。
Instead, for most people, it switches on and off like a light switch.
相反，对于大多数人来说，它就像开关一盏灯一样。
Is our society really so lazy that we can't turn flip a light switch?
难道我们真的是懒到连灯的开关都不屑摁一下的程度了吗？
For example, you can replace a light with another without replacing or changing the switch.
例如，你可以换一个电灯而不需要换开关。
Hit a switch and a light goes on.
碰一下开关，灯就亮了。
“Even though the panel will not be large enough to power the entire car, it could provide enough power to switch the engine off and on when the car is stopped at a traffic light, ” he said.
“尽管面板不能提供整辆车的动力，但是当车遇红灯停下时，它足以提供发动机熄火和启动所需的能量了。”他继续说。
To do this we need a fast light switch.
为此我们需要有一个快速的光开关。
He flicked a light-switch on the wall beside the door.
他啪的一声打开了门边墙上的电灯开关。 。
We can manipulate neuronal activity literally with the switch of a light.
我们甚至可以利用一束光来控制我们大脑内神经元的活动。
We touch a switch to flood a room with light .
我们打开电灯开关使室内灯光明亮。
We can manipulate neuronal activity literally with the switch of a light.
我们能够轻松地操控神经元的活动。
The light switch on your wall, for example, is a very simple finite state machine.
例如墙上的电灯开关，就是一种非常简单的有限状态机。
I turn on a switch but the light had burnt out.
我打开电源，但电灯已经烧坏了。
"Even though the panel will not be large enough to power the entire car, it could provide enough power to switch the engine off and on when the car is stopped at a traffic light," he said.
“尽管面板不能提供整辆车的动力，但是当车遇红灯停下时，它足以提供发动机熄火和启动所需的能量了。”他继续说。
"Even though the panel will not be large enough to power the entire car, it could provide enough power to switch the engine off and on when the car is stopped at a traffic light," he said.
“尽管面板不能提供整辆车的动力，但是当车遇红灯停下时，它足以提供发动机熄火和启动所需的能量了。”他继续说。
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