And once you hit puberty, suddenly there's huge variation in the abilities you have to learn language.

一旦你到了青春期,学习语言的能力会在突然间,发生巨大的变化

耶鲁公开课 - 心理学导论课程节选

And there's a huge industry with DVDs and flash cards and all sorts of things designed to teach your children language.

设计来教授儿童语言的,DVD和闪存卡以及其他存储,形成了一个庞大的产业

耶鲁公开课 - 心理学导论课程节选