abbr. National Campground Owners Association 全国野营地业主委员会; National Council on the Aging NCMEC National Center for Missing and Exploited Children 全国失踪儿童搜寻中心; Noncommissioned Officer Academy 士官学校
单词分析
单词结构：
ncoa
字母数：4
记忆提示
🎯 重点记忆：
单词拼写：ncoa
核心含义：abbr. National Campground Owners Association 全国野营地业主委员会; National Council on the Aging NCMEC National Center for Missing and Exploited Children 全国失踪儿童搜寻中心; Noncommissioned Officer Academy 士官学校