我们要多种树，种很多很多树。

We need to plant trees, lots of trees.

youdao

第一，为了保持水份我们应该多种树。 第二，我们要骑自行车或步行去上学或上班。

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

youdao