呈阳性 chéngyángxìng to test positive Origin Definitions Defs Strokes Stroke Words Sentences Sents 呈 chéng verb to assume To assume or show a certain form, color, or appearance; to appear.阳性 陽性 yángxìng adjective positive (medical) (of a medical test or result) positive; showing the presence of a specific condition, pathogen, or reaction