secondaryadj.次要的;从属的;中等教育的n.副手;次要位置
secondary seta后生刚毛
secondary hook副钩
secondary body次生体
secondary bond副键
secondary fuel二次燃料
secondary flaw次级瑕
secondary host[医] 中间宿主
secondary port次等港,副港,次级港
secondary pump次级泵
secondary verb辅助动词