试题题干
（）linguistics is the systematic description and elucidation of all linguistic changes through time. It studies the historical development of language over a period of time. For example, a study of the changes English has undergone since the time of Shakespeare would be a diachronic study.
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试题解析
历时语言学是对所有语言随时间变化的系统描述和阐释。研究语言在一段时间内的历史发展。例如，研究英语自莎士比亚时代以来所经历的变化将是一项历时性的研究。