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说明原因型模块 These dayswe often hear that It is common that Why does such circumstance occurin spite of social protects? For one thing For another What is more,since Its natural that To solve the problem is not easy at all, but is worth trying.We should do something such as to improve he present situation, and I dobelieve everything will be better in the future. 注释： 1、提出论题 2、说明现状 3、理由一 4、理由二 5、理由三 6、理由三引起的后果 | 
