Toefl词汇（词组）
跟上，不落后于 keep abreast with不息地做 keep at知道...的确切数目 keep count of抵御 keep out管理楼案 keep record留在(某地) keep to跟上 keep up with遵照...的命令 keep with sb\'s orders使...有(工作上的)联系 keep...on board主要成分 key component键盘乐器 keyboard instrument虎鲸；逆戟鲸 killer whale明事理；有头脑 know better几乎一无所知 know next to nothing of...语际翻译 版权所有
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