running board bracket

例句：

1. 1. Thecar has a running board bracketthat allows passengers to easily get in andout of the vehicle.
   这辆车有一个活动板架，乘客可以轻松地进出车辆。
2. 2.The engineer used a special tool to removethe broken part from the running board bracket.
   工程师使用特殊的工具从活动板架上拆下了损坏的部分。
3. 3. The newdesign of the running board bracketis more secure and easier to use.
   新设计的活动板架更安全且更易于使用。