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Source: Bureau of Labor Statistics, Current Population Survey.
文章学术词汇使用熟练，词汇表达较为丰富；全文结构较为严谨，应适当增加文中衔接词的使用；若增加一些从句的使用，文章会取得更好的成绩。
nowadays, the human focus on the emery crisis, which oil and coal is limited resources .When people used energy it become much and much less. The economic growth is dependent on nature resources ,so become emery the energy crisis. Saving the energy has the very good meanings. Firstly, at present majority environment pollute due to the wrong ways of used nature resources result in emerge energy crisis .In china are meeting with more and more problems of pollute ,for example water pollute ,air pollute and so on. The best used of emery is saving the resources and reduce the pollution of environment. Secondly, reduce the use nature resources it is economic sustainable developing. As the students of colleges and universities, we should saving the energy, in order to built harmonious social and live in green environment, shall we together for saving resources has the giving strength
