Rather, just about any normal child, even when not exposed to a full-fledged language, can create a language.

甚至,任何一个普通的小孩,即使并未接触过成熟的语言环境,也可以创造语言

耶鲁公开课 - 心理学导论课程节选

um, in one language and then go to another language you have to talk on the level of a child.

再转换到另一门陌生的语言将是十分困难的，他的表达可能变得像儿童一样磕磕巴巴。

想学好英语吗？ - SpeakingMax英语口语达人

And everybody started to possess at least one language when they were a child.

每个人从儿童时代开始,便至少掌握了一种语言

耶鲁公开课 - 心理学导论课程节选

We mean that his native language, not one that he's acquired subsequently, but the one that he learned as a child, was Greek, some version of the Greek language.

我们以他的母语为依据,即他们非后天习得的,而是从小所学的语言,即是希腊语的,或是一些希腊地区的方言的

耶鲁公开课 - 古希腊历史简介课程节选