switches

常见例句

In the fifth chapter the novel switches back to pick up its major characters.
这部长篇小说在第五章里回过头去重新叙述那些主要的人物。
A device that automatically switches an electric lamp off and on, as in a commercial display sign.
闪光装置如广告宣传告示上的一种自动点燃或熄灭电灯的装置
The switches close the contacts and complete the circuit.
这些开关可使接触器接通电流形成回路。
This button switches the current on.
这个电钮接通电流。