上海龙凤1314　　A bicycle came into sight on the main road.

上海龙凤1314　　大路上出现了一辆自行车。

上海龙凤1314　　A bicycle is often more convenient than a car in towns.

　　在城镇骑自行车常常比开车更方便。

　　When the traffic's this bad, a bicycle really comes into its own.

上海龙凤1314　　在交通如此拥堵的时候，自行车就显出了它的`价值。

上海龙凤1314　　Statistics show that far more people are able to ride a bicycle than can drive a car.

上海龙凤1314　　统计资料表明，会骑自行车的人比会开汽车的人多得多。

　　We went for a bicycle ride on Sunday.

　　我们星期天骑自行车兜风了。

　　The height of the bicycle seat is adjustable.

上海龙凤1314　　这辆自行车车座的高度可以调节。