柯林斯词典half-marathon 1. N a race on foot of 13 miles 352 yards (21.243 kilometres) 半馬拉松; 13英裡352碼的徒步跑 返回 half-marathon剑桥词典a running race over a distance of about 21 kilometres 半程馬拉松賽(約21公裡) 返回 half-marathon