骑自行车是一种很好的运动，此外，还不污染空气。

Bicycling is good exercise; moreover, it won't pollute the air.

youdao

骑自行车很好玩而且是不错的运动。

NO05, Riding a bike is fun and it's good exercise.

youdao

骑自行车很好玩而且是不错的运动。

NO05, Riding a bike is fun and it's good exercise.

youdao