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控制人口增長_450字
關于人口的英語作文

From nowadays, the world have more and more people, somebody say that when in 2015, the population of the world will achieve about 70 billion. General to say, developing country have much more population and increase than the advance country. The population have brouht many seniors problem ,for example :traffic jams，pollution of the environment，the resources are not enough for us,and so （共 615 字） [閱讀本文] >>

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