世界人口现状_400字
关于人口的英语作文

        It is reported that the world’s population was 6 billion in the year 2,000,and it is growing faster and faster.The world’s population problem is the greatest one because it brings lots of problems,such as water resources problem,more and more people losing their jobs and so on.These problems are mainly in the developing countries because the population of the developing countries is ove    （共 547 字）     [阅读本文] >>