以O开头的英文单词,比较常用的,要带注释答:ore n.矿石, 含有金属的岩石 === or conj.或, 或者, 还是 abbr.[军] Operational Requirement, 作战需求 abbr.[军] Operations Research, 运筹学研究 === off adj.远的, 空闲的, 不工作的 adv.离开, 在远方, 离去, 分离, 中断, 完成 prep.从...离开, 脱离 === old adj.年老的, 老...
20个o开头的单词答:off, oil, old, one, out, own, our, okay, once, open, ocean, opera, onion, often, olive, offer, or, other, ought, office, online, orange