running board support

例句：

1. 1. The car's running board is a convenient feature for passengers.
   汽车的活动板对乘客来说是一个便利的功能。
2. 2.The new design of the car's running board has received positive feedback from customers.
   汽车活动板的新设计已经得到了顾客的积极反馈。
3. 3. The running board supports the front seats and provides additional storage space.
   活动板支撑前座并提供额外的储物空间。