单词	sergeant at arms
释义	sergeant at arms noun phrase : an officer of an organization (such as a legislative body or court of law) who preserves order and executes commands Word History First Known Use 14th century, in the meaning defined above
随便看	sawl sawlike sawlog sawlogs sawman sawmen sawmill sawmiller sawmilling sawmills sawn sawn at sawn down sawn up sawn-off shotgun sawney sawneys sawny sawpit sawpits saws saws at saws down saws up sawsetter

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