n.旋钮;把手;瘤;节;圆丘
Twist the knob to the right setting. 把旋钮拧到适当的定位挡上。
As he turned the knob, the sound diminished. 他一转旋钮,声音就变小了。
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。
He could not find the knob in the dark. 黑暗中,他无法找到门把手。
n.球形门把手
n.小节;小瘤
adj.多节的;多瘤的;形成疙瘩的
adj.有节的