开关
kāi guān
Nghĩa
- công tắc
Định nghĩa
指控制电路通断的装置;也指开启和关闭的动作或状态。
A device that controls the on/off state of an electrical circuit; also refers to the action or state of turning on and off.
Cách dùng
常用作名词,指具体的电器开关;也可作动词,表示开与关的操作。在口语和书面语中均常见。
Commonly used as a noun referring to a physical switch; can also be used as a verb meaning to turn on and off. It is common in both spoken and written language.
Ví dụ
- 1 请把房间的灯开关打开。 (Please turn on the light switch in the room.)
- 2 这个开关控制着整个楼的电源。 (This switch controls the power supply of the entire building.)
- 3 他每天上下班都要开关电脑。 (He has to turn on and off the computer every day when he goes to and from work.)
- 4 开关阀门时要小心,别弄坏了。 (Be careful when turning the valve on and off, don't break it.)
- 5 这种新型开关更加安全省电。 (This new type of switch is safer and more energy-efficient.)
Đưa vào luyện tập
Bài luyện HSK theo dạng đề thi, chấm điểm và giải thích ngay.
Miễn phí · khoảng 3 phút · không cần tài khoản