自行车；脚踏车；骑自行车；
不及物动词
1. Dick bicycles to school every day.
狄克每天骑脚踏车上学。
名词
1. Do you ride a bicycle?
你骑自行车吗？
2. bicycle的意思
2. He lost control of his bicycle and fell down.
他因控制不住他的自行车而跌倒了。
3. Did you come by bicycle?
你是骑自行车来的吗？
1.
1. 脚踏车：而且每个单字多半难以相互联想. 相似的例子如:车(car)、货车(truck)、火车(train)、公车(bus)、战车(tank)、脚踏车(bicycle)、计程车(taxi)、救护车(ambulance)等.
2. 自行车类：定义一个车(Vehicle)基类,具有MaxSpeed、Weight等成员变量,Run、Stop等成员函数,由此派生出自行车类(bicycle),汽车类(motocar)类,自行车类有高度等属性,汽车
1. 自行车；脚踏车
A bicycle is a vehicle with two wheels which you ride by sitting on it and pushing two pedals with your feet. You steer it by turning a bar that is connected to the front wheel.
2. 骑自行车
If you bicycle somewhere, you cycle there.
e.g. I bicycled on towards the sea.
我继续骑着自行车朝海边走。