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Article
飲酒時舉杯相觸的歷史, History of bottom up

繭翁 Jian Weng (Author),

Article
鳥卵的顏色, The color of bird's ovum

Article
鉛粉的元素, Ingredients of chalk

繭翁 Jian Weng (Author),

Article
科學小識(續), Knowledge of science

小青 Xiaoqing (Author),

Image

魚 Fish