发生学分类法 fāshēngxuéfēnlèifǎ genealogical classification Origin Definitions Defs Strokes Stroke Words Sentences Sents 发生学 發生學 fāshēngxué embryology the branch of biology concerned with the study of embryos and their development分类法 分類法 fēnlèifǎ classification a method of categorizing things; taxonomy