美 [raɪd ə baɪk]
骑自行车：使用自行车作为交通工具或进行运动。
骑自行车
... Are these ...+名词性物主代词？ ride a bike 骑自行车 join加入（团体、组织）,并成为其中一 员 ...
My father taught me how to ride a bike.
我父亲教会了我骑自行车。
You need strong nerves to ride a bike in London.
在伦敦骑自行车，你可得有胆量。
When you ride a bike, you exercise all of the leg muscles.
骑自行车时，你可以锻炼腿部的全部肌肉。
I ride a mountain bike, usually to and from work.
我经常骑山地车上下班。
SpeakingMax英语口语达人 : 地铁的好处
Yes, we can take mass transit or we could maybe ride a bike here or there.
As Warren Buffett has said, if you are anorexic and ride a bike, core CPI is great.
At 8 years old, most Americans were probably learning to ride a bike, or drawing cartoons, or collecting action figures.