舟曲泥石流英語作文（一）_750字
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        泥石流形成及爆發(fā)方式 　　Mountain area is place where mud-rock[泥巖] flow is coexisting with humankind.mud-rock flow acts on mountain environment and strongly affects economic activities while human economic activities act on environment as well and intensely affect mud-rock flow.Frequent rainstorms can easily cause violent floods and mud-rock flow in mountainous areas. mud-    （共 913 字）     [閱讀本文] >>