名词
中文翻译：国家语言
同义词：
['official language', 'official tongue', 'lingua franca']
例句：
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1. The national language is the one spoken by the majority of the population.
国家语言是大多数人所说的语言。
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2. In some countries, the national language is used in all official communications.
在一些国家，国家语言用于所有官方通讯。
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3. The national language is often used as a means of communication between different countries.
国家语言常常被用作不同国家之间的沟通工具。