百科全书 bǎikēquánshū HSK7 encyclopedia Definitions Defs Origin Strokes Stroke Words Sentences Sents 中国大百科全书出版社 Zhōngguó Dà Bǎikē Quánshū Chūbǎnshè Encyclopedia of China Publishing House 小百科全书 xiǎobǎikēquánshū micropedia