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来源:雅诚德英语网
By the middle of the twentieth century, the Frontier Thesis fell into disfavor among historians.
到了20世纪中叶,“边疆假设”在历史学家中渐渐失宠。
By the middle of the twentieth century, the Frontier Thesis fell into disfavor among historians.
到了20世纪中叶,“边疆假设”在历史学家中渐渐失宠。