Doorknob Condition伸缩门把手
doorknob transition钮形变换
The doorknob不完善版
A DOORKNOB我买过的最差的东西
doorknob capacitor门钮形电容器
doorknob transformer门钮形转换器
Chrome Doorknob镀铬门把手
doorknob tube门把管;翻译
doorknob b门把手
同义词:doorhandle
N-COUNT(可数名词) A doorknob is a round handle on a door. 门环