From 1926 to 1929, the biggest flood in a century Suiyuan region.

1929年, 绥远地区发生了百年不遇的旱灾.

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To be a torch bearer is a rare honor.

成为一名火炬手,是百年不遇的荣耀.

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This draught occurs once in a blue moon.

这场旱灾是百年不遇的.

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This is the biggest flood in a century.

这是百年不遇的大水灾.

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The drought and crop failure were the most serious in North China a hundred years.

那几年,华北平原发生了百年不遇的大旱灾和歉收.

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