-
最佳答案：to avoid artificial damageto avoid damage caused by human beings.to avoid delibe
-
最佳答案：How surprised he was when he saw the trees were seriously destroyed !
-
最佳答案：Not being severely poluted and damaged, the nature will return to its original s
-
最佳答案：A site of Tang Dynasty culture was found in our city recently.Some people though
-
最佳答案：1.This city left a deep impression on me.2.Many museums were destroyed in the wa
-
最佳答案：The great universe is the mankind's mother,we acquire from the nature a lot of,e
-
最佳答案：1.The depletion of the ozone layer is the cause of global warming.The direct eff
-
最佳答案：As the high sensitivity and relevance of tourist industry, the tourism is easily
-
最佳答案：1、why does he spend so much time to learn french by himself?2.if the natrual res