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- You didn't have to see Varmus pedaling through traffic;all you needed for the mental picture was the up-close sound of traffic and a bicycle chain gliding through a derailleur. 你不用亲眼看见法穆斯在车水马龙中蹬着自行车，你所需要的就是听着车辆迎面开来、自行车链条在变速轮上顺畅地滑动，在脑海中虚构一个情景。
- He is learning to ride a bicycle. 他正在学习骑自行车。
- The chain is an important part of a bicycle. 车链是自行车的重要部件。
- 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 chain,ie for transmitting power from the pedals to the wheels 自行车链条
- 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。
- Amazing things,like putting a bicycle chain back on,just like that. Or building a hamster cage. Or guiding a jigsaw so it forms the letter F; 那些奇妙的事儿有上自行车链条，或是建一个仓鼠笼子，或是教我玩拼图玩具，拼出个字母"F"来。
- 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。
- We used pipe. They used bicycle chains. 我们用水管。他们用脚车链。
