其次，我们可以骑自行车或步行到学校和工作…第三，我们不应该把脏的水扔到河里。

Second, we can ride a bike or walk to the school and work... Third, we shouldn't throw the dirty water into the river.

youdao

我们每天都要从家里到学校，或步行或自行车或电动车，又或是父母接送。

Everyday, we go to school from home, walking, by bike, by electric bike or go and come back with the guide of our parents.

youdao

我们每天都要从家里到学校，或步行或自行车或电动车，又或是父母接送。

Everyday, we go to school from home, walking, by bike, by electric bike or go and come back with the guide of our parents.

youdao