shift knob的用法和樣例：
例句
- While holding the release button depressed, pull the knob and shaft out of the headlamp switch.
保持鈕的按住狀態，將按鈕和軸拉出開關。 - The rheostat is operated by rotating the control knob, separating it from the push-pull action of the main lighting switch.
可變電阻器由旋轉的控制手柄操縱，與燈光總開關的推一拉的操縱是分開的。
