dirt bike
柯林斯词典
1. N-COUNT A dirt bike is a type of motorbike that is designed to be used on rough ground. (在粗糙路麪上騎的)摩托車
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dirt bike (dirt bikes)
剑桥词典
- a special type of motorcycle designed for riding over rough ground , often used for racing
（野外泥土地比賽用的）越野摩托車 返回 dirt bike