名词
中文翻译：敌人
同义词：
['foe', 'adversary', 'rival']
例句：
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1. Thetwo countries have long been at odds overthe issue of nuclear energy.
这两个国家长期以来一直在核能问题上存在分歧。
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2. He wasa fierce opponent who always tried to undermine his opponents' arguments.
他是一个激烈的对手，总是试图削弱他的对手的论点。
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3.The couple has been enemies since their firstmeeting.
这对夫妇自从第一次见面后就成为了敌人。