bike/bicycle /ˈbaisikl/ I. n. [c]自行车：Do you ride a bicycle/bike? 你骑自行车吗?He lost control of his bicycle/bike and fell down.他因控制不住他的自行车而跌倒了。Did you come by bike/bicycle?你是骑自行车来的吗? ‖II. vi. 骑自行车：bicycle to the office骑车上班They had spent the day bicycling around the island. 他们花费一天时间骑车环岛游。