坑儒

こうじゅ

• burying Confucian scholars alive n

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鉱坑

こうこう

• shaft; mine; pit n

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坑外

こうがい

• out of the pit n

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立坑

たてこう

• shaft (e.g. in a mine); pit n

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坑木

こうぼく

• mine timbers n

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