核心问题
This research helps teachers to understand how children acquire language. 这项研究有助于教师了解孩子是如何获得语言的。
据我所知, language 是个可数名词, 为什么在 language 之前不使用不定冠词或复数形式呢?
词典解答
当泛指“语言”或“术语”时，language 是个不可数名词。例如：
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The second question is how language is acquired. 第二个问题是语言是怎样获得的。
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Human language consists of words that are usually spoken or written. 人类语言是由说或写的词汇组成的。
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I found her lecture quite difficult to follow because she used a lot of technical language. 我觉得她的演讲很难明白,因为她使用了大量技术用语。
当指某个国家、民族、地方的语言时，language 是个可数名词：
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He can speak several languages. 他会讲几种语言。
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Do you like learning a foreign language? 你喜欢学习外语吗?