补校 bǔxiào remedial school Origin Definitions Defs Strokes Stroke Words Sentences Sents 补 補 bǔ noun abbreviation of 补习 補習 bǔxí to take extra lessons to take or give supplementary lessons after school or work, often with a private tutor or at a cram school, in order to catch up or improve one's skills校 xiào noun abbreviation of 学校 學校 xuéxiào school school; educational institution