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单词	labrum
释义	labrum /ˈleɪbrəm / noun (plural labra /ˈleɪbrə/) Zoology A structure corresponding to a lip, especially the upper border of the mouthparts of a crustacean or insect. Derivatives labral adjective Origin Early 18th century: from Latin, literally 'lip'; related to labium.
随便看	mastigophore mastigure mastika masting mastitis mastless mastman mastocyte mastocytoma mastocytosis mastodon mastodonic mastodont mastodontic mastodynia mastodyny mastoid mastoidal mastoid bone mastoidectomy mastoiditis mastoid process mastoids mastopathy mastopexy

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