自行车是一种儿童训练车，用于教孩子逐步学会如何独自掌握平衡。

The Shift bicycle is a kid's training bike by gradually teaching them how to balance on their own.

youdao

自行车是一种儿童训练车，用于教孩子逐步学会如何独自掌握平衡。

The Shift bicycle is a kid's training bike by gradually teaching them how to balance on their own.

youdao