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- He is learning to ride a bicycle. 他正在学习骑自行车。
- It's uphill work learning to ride a bicycle. 学骑自行车是件难事。
- This hill is too steep to ride up on a bicycle. 这山太陡了，骑自行车可上不去。
- She is too little to ride a bicycle. 她太小了，不能骑脚踏车。
- A bicycle is a real boon when you live in a small town. 住在小城镇上，有辆自行车确实极为方便。
- A bicycle and a motorcycle are built on the same principle. 自行车和摩托车是根据同样的原理制造的。
- I'll get along with a bicycle until we can afford a car. 在我们买得起汽车以前，我将继续用单车凑合凑合。
- If I had a bicycle made of stainless steel, it will never get rust. 要是我有一辆不锈钢制造的自行车，它就再也不会生锈了。
- A bicycle's often far more convenient than a car in busy cities. 在热闹的都市里骑自行车往往比坐汽车方便得多。
- I have decided to buy a bicycle, whether it is expensive or not. 我已经决定买一部脚踏车，不论贵不贵。
- A bicycle cape will protect you in wet weather. 自行车雨披可以使你在雨天骑车也不致淋湿。
- You can coast downhill on a bicycle. 你可以骑自行车滑下坡。
- Mary was in the seventh heaven; she had had a bicycle for her birthday. 玛丽在生日那天得到了一辆自行车，简直乐不可支。
- A bicycle pump puts air into the tires. 自行车打气筒把空气打进轮胎里。
- A bicycle can be hired by the hour or by the day. 自行车可按小时或天数计费租借使用。
- You can coast downhill on a sled or a bicycle. 你可以乘雪撬或骑自行车向山脚下滑行。
- a bicycle lock 自行车的车锁
- I can ride a bicycle, and I can drive a car, but I can not ride a horse. 我会骑自行车，而且我会开汽车。但我不会骑马。
- He bought a bicycle last week, and it makes it easier for him to get round. 他上周买了一辆自行车，这使他来来往往更加方便了。
- She blow up the flat tyre with a bicycle pump. 她用自行车打气筒给瘪了的轮胎打气。
