柯林斯詞典quad bike (also quad) 1. N a vehicle like a motorcycle with four large wheels, designed for agricultural, sporting, and other off-road uses (用於辳業(yè)、運(yùn)動(dòng)或其它非路麪用途的)四輪摩托車 返回 quad bike劍橋詞典a motor vehicle similar to a motorcycle with four wheels 四輪摩托車 返回 quad bike