形容词
中文翻译：不频繁的
同义词：
['rare', 'intermittent', 'occasional']
例句：
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1.The movie was a rare opportunity for the actors to showcase their talents.
这部电影是演员们展示才华的难得机会。
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2. He has been infrequently seen since his accident.
自从他受伤以来，他就很少被看到。
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3.Infrequent visits to the library have helped improve her reading skills.
经常去图书馆有助于提高她的阅读技能。