ring rider 环状游码
The robbers robbed the richly dressed rider of his ring. The police started to look into the robbery.
强盗抢了那个衣着华贵的骑车人的戒指，警察开始调查此抢案。
The mechanism completely solves the problem of mutual influence of the operations of the bicycle ring and a brake and can provide a rider with the security to a greater degree.
它从根本上解决了骑行车辆铃和闸的操作相互影 响的问题，可为骑行者带来更大程度的安全。
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