1. A small frame on casters designed to help support a child learning to walk. 
   学步车一种帮助小孩学走路用的小扶车
2. A wheeled support or frame for carrying a heavy object, such as a cannon. 
   支架用于运送重物，如大炮的带轮的支撑物或架子
3. A plate, frame, or platform serving as a base or support for a machine. 
   底板，底座用作机器的基部或支撑物的板、框或台
4. A frame or pad to support and expand the fullness of the back of a woman's skirt. 
   裙撑支撑并且使女裙后部完全展开的框架或衬垫
5. A wooden frame built especially to support the sides of an arch until the keystone is positioned. 
   支拱板条专门用来在拱顶石放置好以前支撑拱的两边木架子

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