All the branches of the trees, the leaves that come down create a humid area, and they take months and months under the water, go to the rivers, and maintain our source, maintain our rivers.
枝叶垂下来， 制造一个湿润的环境， 经过很长时间的蒸发，水分才会进入河流， 就能保住我们的资源，保住我们的河流。