騎自行車：

1、by bike；

2、ride a bike（bicycle）；

3、bicycle riding；擴展資料：；例句：

1、請你教我怎樣騎自行車。

Teach me how to ride a bicycle.；

2、我呢，騎自行車去，你們呢，坐汽車去。；I'm going by bike, and you may go by bus.；

3、平常我騎自行車上班。；I go to work by bicycle as a rule. ；

4、嚴格說來，我并不完全是一個初學(xué)者——幾年前我經(jīng)常騎自行車。；I am not a learner as such — I used to ride a bike years ago ；

5、周末你可以去滑草，騎腳踏車，或購物。；You may go grass skiing, bicycle riding, or shopping on the weekend. ；

6、自行車騎行過程中腳踏力的分析；Pedal forces analysis in bicycle riding ；

7、跑步、游泳及騎自行車只是有氧鍛煉的3種方式。；Jodding, swimming, and bicycle riding are just three kinds of aerobic exercise.