APP Nature, the environment which human beings live by, is magnificent and unique. There si only one earth with super living conditions in the universe. We should have cherished nature and preserved it. Conversely, however, we have been continually spoiling it, even to a shocking degree. Now let‘s see what we have dong. Thousands of trees have been cut down per year, which has caused soil ero （共 2684 字） [閱讀本文] >>
