公式 gōngshì HSK5 formula Origin Definitions Defs Strokes Stroke Words Sentences Sents 公式化 gōngshìhuà formalism adherence to rigid, clichéd patterns in art or literature, often following ideological prescriptions数学公式 shùxuégōngshì mathematical formula 递推公式 dìtuīgōngshì recurrence formula 非公式 fēigōngshì unofficial unofficial; informal