记忆方法
将“knob”与“knock”联想法记忆，想象你轻轻敲击（knock）一个物体，触感到的圆形突出部分就是knob。这个圆形突出物通常用作旋转或按压的把手。
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中文词源
knob 门把手，旋扭，疙瘩
来自中古英语knobbe,来自Proto-Germanic*kunppo,泥块，木块，来自PIE*gen,压，捏，成团，词源同knead.引申词义门把手，旋扭，疙瘩等。
英语词源
- knob
-
knob: see knot
- knob (n.)
- late 14c., knobe, probably from a Scandinavian or German source (compare Middle Low German knobbe "knob," Middle Dutch cnoppe, Dutch knop, Old Frisian knopp, knapp, Old High German knopf, German Knopf "button," Old Norse knyfill "short horn"). Meaning "knoll, isolated round hill" is first recorded 1640s, especially in U.S.
权威例句
- 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。
- 2. The cutters are opened by turning the knob anticlockwise.
- 逆时针转动旋钮可以开启切割机。
- 3. He twiddled a knob on the dashboard.
- 他转动着仪表板上的一个旋钮。
- 4. 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。
- 5. the volume control knob
- 音量控制旋钮