ecosystem生态系统РР water loss and soil erosion水土流失РР deforestation森林砍伐РР Evidently,the deterioration of the quality of the environment threatens the existence of mankind很明显,环境质量恶化会危及人类的生存。РР Therefore,the best solution is that we should devote to the protection of our home while we are developing our economy. 因此,的策略是,在发展经济的同时致力于保护环境。РР Both the government and ordinary people should join hands to make this world a better place to live in,not only for ourselves,but also for future generations.政府和百姓应携起手来,一起打造更好的生存环境,不仅为了自己,更为了我们的子孙后代。РР sustainable development可持续发展РР According to its definition,the purpose of sustainable development is to meet the needs of the present without compromising the ability of future generations to meet their own needs.根据定义,可持续发展战略提出的目的是在不损害子孙后代的利益的前提下满足今天人们的需要。