短語詞組短語age class composition 齡級結構age group composition 齡組結構Population age composition 種群年齡組成Age Composition Oh 時代因素哦age composition of fish 魚類年齡組成age composition of population 人口年齡結構等mosquito age composition 蚊齡組成age composition of rodents 鼠類年齡結構 返回 age composition