cyclo-cross
noun/ˈsaɪkləʊ krɒs/
/ˈsaɪkləʊ krɔːs/
[uncountable]- the sport of racing bicycles over rough ground, which in places is too difficult to ride on so you have to carry your bicycle and run
自行车越野赛（遇到特别崎岖的路面时需携车跑步）