pedal base

例句：

1. 1.The pedal base on the bike is easy to adjust.
   自行车上的踏板底座很容易调整。
2. 2.The engineer designed a pedal base that can support heavy loads.
   工程师设计了一个可以承受重负载的踏板底座。
3. 3. The new model of car has a pedal base that is more comfortable for long rides.
   新款汽车的踏板底座更适合长时间骑行。