知识问答
最佳答案：By doing so the environment can become more beautiful and the energy can be save
最佳答案：we can use water to water the flowers after we use it to wash rice,in that way w
最佳答案：Everyone could affect the environment and take the measure to improve it. There
最佳答案：wasting paper is the most commonly seen bad habit.it is detrimental to forest pr
最佳答案：for reducing greenhouse gas of atmosphere,on the one hand,we need to cut down el
最佳答案：Water is very important to the human beings.But now many rivers and lakes are po
