knobs

英 [nɒbz]

美 [nɑbz]

n. (用以开关电视机等的)旋钮; (门或抽屉的)球形把手; 疙瘩; 节
knob的第三人称单数和复数

柯林斯词典

N-COUNT （门或抽屉的）球形把手
Aknobis a round handle on a door or drawer which you use in order to open or close it.
1. He turned the knob and pushed against the door.
  他扭动把手推了推门。
N-COUNT （柱子或棍子顶部的）疙瘩，节，球状物
Aknobis a rounded lump or ball on top of a post or stick.
1. A loose brass knob on the bedstead rattled.
  床架上一个松动的球形铜扣发出嘎啦声。
N-COUNT （机器或设备的）旋钮
Aknobis a round switch on a piece of machinery or equipment.
1. ...the volume knob.
  音量旋钮
N-COUNT 小块（黄油）
Aknob ofbutter is a small amount of it.
1. Top the steaming hot potatoes with a knob of butter.
  在冒热气的马铃薯上放一小块黄油。