knob
/nɔb; nɑb/ n
1
(a) round handle (of a door, drawer, etc) （门、 抽屉等的）圆形拉手.
(b) round control button (for adjusting a radio, TV, etc) （收音机、 电视机等的）旋钮.
2 round lump on the surface of sth, eg a tree trunk 结节, 瘤, 疙瘩（如树干上的）.
3 small lump (of butter, coal, etc) （黄油、 煤等的）小块.
4 (idm 习语) with knobs on (Brit sl 俚) (used to indicate the return of an insult, or emphatic agreement 用以表示反唇相讥或强调同意)
`You're a selfish pig!' `And the same to you, with knobs on!' ｀自私鬼!＇｀你才是呢, 你是双料的!＇