单词	um and ah
释义	um and ahˌum and ˈah verb [intransitive] informal to think for some time before making a decision:  He ummed and ahed a bit but eventually agreed to help us.
随便看	organizational Organization of American States organize organized organized crime organizer organogram orgasm orgasmic orgiastic orgy Orient orient oriental orientalist orientate orientated orientation oriented orienteering Orient Express orifice origami origin original

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