knob

例句与用法:

1. Twist the knob to the right setting.
   把旋钮拧到适当的定位挡上.
2. This knob is only held on by sellotape.
   这个旋钮只是用透明胶带固定住的.
3. As he turned the knob, the sound diminished.
   他一转旋钮，声音就变小了。
4. A knob, knot, or other small protuberance.
   球形突出物，树瘤球形突出物、节瘤或其它小的突出物
5. A knob, knot, protuberance, or swelling.
   节，结，瘤球状物、结、节疤或肿瘤
6. `Does this knob come off?' `No, it's fixed on permanently.'
   ｀这个把手能拆下来吗?＇｀不能, 那是固定的.＇
7. You may turn the right knob on the TV to switch it on.
   你可以拧电视上右边的旋钮把它打开。

词形变化:

名词 knob:

1. a circular rounded projection or protuberance
同义词：boss
2. a round handle
3. any thickened enlargement
同义词：node, thickening
4. an ornament in the shape of a ball on the hilt of a sword or dagger
同义词：pommel