单词	knocker
释义	knockerknocker /ˈnɑkɚ/ noun [countable] a piece of metal on an outside door that you use to knock loudly
随便看	orient oriental orientate orientation -oriented orienteering orifice origami origin original originality original jurisdiction originally original sin originate origination originator Orinoco, the oriole ormolu ornament ornamental ornamentation ornate ornately

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