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近年来,我国不少城市出现了二人或三人骑踏的自行车。这种原用于公园、体育场馆和旅游景区内专供游客娱乐的自行车,车身长、稳定性差,需共骑人密切配合,当遇有外力作用或配合不当时,极易造成
In recent years, many cities in our country have seen the bicycling of two or three people riding on their bicycles. This is originally used for parks, stadiums and tourist attractions specifically for tourists entertainment bikes, body length, poor stability, the need to ride a close ride, in the event of external force or improper, can easily lead to