y。 Water is polluted, we have no clean water to drink。 Many trees are cutting down, some animals are getting less and less。 Some factories are pouring dirty air into the sky。 The population is increasing faster and faster, resources are getting less and less…etc。 Not only does it affect our lives and health, it also has a great affection in the future。 People’s healt (共 1107 字) [閱讀本文] >>