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漆皮鞋變新法 - A way to pulish enamel leather shoes
Subject matters: 新知 - new knowledge,
Language level: Baihua
Keywords: general knowledge,
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米泔水之功能 - The Functions of Rice Water
Subject matters: 新知 - new knowledge,
Language level: Wenyan
Keywords: general knowledge,
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辨別火腿鮮美 - Judging the Quality of Ham
Keywords: food and drink, general knowledge,