释义
n. 把手,瘤
例句
1. 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。 2. `Does this knob come off?' `No, it's fixed on permanently.' ｀这个把手能拆下来吗?＇｀不能, 那是固定的.＇
