The word 'knob' refers to a rounded projection or lump, or a rounded protuberance at the end of something. It is often used as a handle or control.
单词'knob'的意思是“球形把手”或“（收音机等的）旋钮”。它也可以指“小块”或“疙瘩”，还可作动词表示“鼓起”或“给（门等）装球形把手”。
| 单词 | knob |
|---|---|
| 音标 | [nɒb] [nɑ:b] |
| 释义 | n.["球形把手","（收音机等的）旋钮","小块","疙瘩"] v.["鼓起","使有球形突出物","给（门等）装球形把手"] |
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