骑自行车：

1、by bike；

2、ride a bike（bicycle）；

3、bicycle riding；扩展资料：；例句：

1、请你教我怎样骑自行车。

Teach me how to ride a bicycle.；

2、我呢，骑自行车去，你们呢，坐汽车去。；I'm going by bike, and you may go by bus.；

3、平常我骑自行车上班。；I go to work by bicycle as a rule. ；

4、严格说来，我并不完全是一个初学者——几年前我经常骑自行车。；I am not a learner as such — I used to ride a bike years ago ；

5、周末你可以去滑草，骑脚踏车，或购物。；You may go grass skiing, bicycle riding, or shopping on the weekend. ；

6、自行车骑行过程中脚踏力的分析；Pedal forces analysis in bicycle riding ；

7、跑步、游泳及骑自行车只是有氧锻炼的3种方式。；Jodding, swimming, and bicycle riding are just three kinds of aerobic exercise.