名词
中文翻译：语言群体
同义词：
['language family', 'linguistic group']
例句：
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1. The language of ancient Egypt is an important part of the Indo-European language family.
古埃及的语言是印欧语系的一个重要组成部分。
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2. The study of languages has become a major field in linguistics.
语言学中研究语言已经成为一个主要领域。
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3. Language learning is a common activity for many people around the world.
全世界许多人都进行着语言学习这一活动。