求翻译：树是一种重要的自然资源，它不仅有利于环境的改变而且影响着人的身体健康。树可以净化空气，它把废气转化成我们所需要的氧气。树还可以防止水土流失，防止沙漠扩大。可见，树对我们是多么的重要。每年的三月十二号是中国的植树节，让我们多种树来保护我们的地球。是什么意思？

Tree is an important natural resource, it is not only beneficial changes in the environment and affect human health. Tree can purify the air, which the exhaust gas into the oxygen we need. Trees also prevent soil erosion, prevent the spread of deserts. Can be seen, the tree is very important to us.

Trees, which are an important natural resources, it will not only help the changes of the environment but also adversely affected the people's health. Trees purify the air, it can be transformed into what we need to exhaust the oxygen. Trees can also prevent soil erosion and to prevent spread of des

The tree is one important natural resource, not only it is advantageous in the environment change moreover is affecting human's health.The tree may purify the air, it transforms the oxygen the waste gas which we need.The tree also may prevent the soil erosion, prevents the desert expansion.Obviously

Trees are an important natural resource, it is not only good for the environment change and impact on people's health. Trees can purify air, exhaust it translated into the oxygen we need. Trees can also prevent soil erosion and prevent deserts expand. Visible, the tree is very important to us. Annua

The tree is a kind of important natural resources, it is not only favorable to the change of the environment but also the health of influence people. The tree can purify the air, it transforms the waste gas into the oxygen that we need. The tree can also prevent the soil erosion, prevent the desert