knobbed

形容词 knobbed:

1. used of old persons or old trees; covered with knobs or knots
   同义词：gnarled, gnarly, knotted, knotty

1. He pressed the knob and the lid flew open.
   他揿了揿按钮，盖子就猛地弹开了。
2. 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。