knob /nɒb/ CET6 TEM4

• 1. 

  N-COUNT A knob is a round handle on a door or drawer which you use in order to open or close it. 球形把手

  例：

  He turned the knob and pushed against the door.

  他转动门把手，推了那扇门。

• 2. 

  N-COUNT A knob is a round switch on a piece of machinery or equipment. 旋钮

  例：

  ...the volume knob.

  …音量旋钮。