Definitions
- 1. power switch
- 2. gas valve
- 3. to open the city (or frontier) gate
- 4. to open and close
- 5. to switch on and off
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Word relationships
Usage notes
Collocations
常用搭配：电源开关（power switch）、灯开关（light switch）、打开开关（turn on the switch）、关闭开关（turn off the switch）。
Common mistakes
开关常被误用为动词，如“开关灯”，正确说法是“开灯”或“关灯”。作为名词时正确，如“灯的开关”。
Example Sentences
2 shown他用力扳动 开关 ，机器启动了。
He pulled the switch hard and the machine started.
他在黑暗中摸索着找 开关 。
He groped in the dark for the switch.
AI-generated examples are marked with this icon.