[mass noun]the action of subdividing or being subdivided 再分,重分 ■[count noun]a secondary or subordinate division 部分;分支,分部 ■[count noun](US & Austral.)an area of land divided into plots for sale; an area of housing (美,澳)(为出售而划分的)小块土地;住宅小区 ■(Biology)any taxonomic subcategory, especially (in botany) one that ranks below division and above class (生)亚门