And one reason we know this is because of the demonstrated case studies where a language is created within a single generation.

我们之所以这样认为,是因为有许多的个案研究,都证明了一代人之内是可以创造出语言的

耶鲁公开课 - 心理学导论课程节选

Well, I am a Linguistics major, so I do a lot of research and kind of focus a lot of my studies on acquiring language.

我是语言学专业的，所以做了很多专注于语言习得的研究。

英语学习技巧 - SpeakingMax英语口语达人

And more recently, there's been case studies of children who acquire sign language.

而近期更有些关于儿童学习手语的,个案研究

耶鲁公开课 - 心理学导论课程节选

There is considerable evidence for different forms of innate knowledge and innate desires and we'll look--and we'll talk about it in detail when we look at case studies like language learning, the development of sexual preference, the developing understanding of material objects.

大量不同形式的证据,证明了先天知识和先天欲望的存在,当我们讲到语言学习，性偏好发展,以及物质客体理解的发展，等主题的个案研究时，会来细讲这些证据。

耶鲁公开课 - 心理学导论课程节选

Well, the claim that language is part of human nature is supported by neurological studies, some of which were referred to in the chapters on the brain that you read earlier that talk about dedicated parts of the brain that work for language.

语言是人类本性的一部分的这个观点,得到了神经研究的支持,在之前大家阅读的关于大脑的章节中,对专门负责语言功能脑区的探讨,就描述了其中的一些研究

耶鲁公开课 - 心理学导论课程节选