形容词
中文翻译：一流的
同义词：
['first-rate', 'top-notch', 'excellent']
例句：
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1.This hotel is first-class, with all the amenities you could ask for.
这家酒店一流，应有尽有。
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2.The food at this restaurant is first-class, and the service is exceptional.
这家餐厅的食物一流，服务也是一流的。
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3.She was awarded first-class honors for her research in physics.
她因在物理学研究中的杰出成就被授予一级荣誉勋章。