一种牙刷头具有一个从刷头延伸的牙齿清洁单元。
A toothbrush head has a tooth cleaning element extending from the head.
牙齿清洁单元可以相对于其从 刷头延伸的那部分旋转。
The tooth cleaning element is rotatable relative to that portion of the head from which it extends.
走廊(廊壁)上的扶手一直延伸到尽头,这些扶手用来帮助犯人从一头走到另一头。
Handrails run down the middle of the hallway to help prisoners make their way from one end to the other.
应用推荐