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猶大；出賣朋友（或國家）的人；叛徒
If you accuse someone of being a Judas, you are accusing them of being deceitful and betraying their friends or country.
例句
It was a pulsating session in which a member of the audience shouted 'Judas' at Dylan for deserting his folk roots.
這場演出氣氛緊張，觀眾中有人朝著迪倫大叫“猶大”，指責他拋棄了他的民歌根基。