遗传工程 yíchuángōngchéng genetic engineering Origin Definitions Defs Strokes Stroke Words Sentences Sents 遗传 遺傳 yíchuán noun heredity the passing on of physical or mental characteristics genetically from one generation to another工程 gōngchéng noun engineering the field of engineering; the application of scientific and mathematical principles to design and build structures, machines, or systems