1. He turned the knobs to adjust the sound.
他转动旋钮调节声音。

2. The door had old brass knobs.
门上装着旧的黄铜门把手。

3. She checked all the knobs before leaving.
她离开前检查了所有旋钮。

A: Can you open the cabinet with these knobs?
A：你能用这些把手打开橱柜吗？

B: Yes, just turn the knobs gently.
B：可以，只要轻轻转动旋钮就行。

1) 用于门、抽屉或设备的控制旋钮

2) 可调节设备或机械的操作部件

3) 一般为圆形或凸起，可旋转或按压

1. 门把手或旋钮，用于开启、关闭或控制

e.g. She polished the brass knobs on the doors.
她擦亮了门上的黄铜把手。

2. 设备或机械上的调节旋钮

e.g. Turn the knobs to increase the temperature.
转动旋钮来提高温度。

noun

1. A rounded handle or control on a door, drawer, or device that can be turned or pressed to operate it.

Synonym: handle, dial, control