基本解释n.[生]外共生体；外共栖体(指在生物体表生活的共生体)同根派生 ectocommensal相关词英汉例句Ectocommensal:a commensal organism that lives on the outer body surface of another organism. 外共生体:生活在另一种生物体外表的共生生物.ectocommensal更多例句