This next part may contain some adult language.

接下来这部分可能会包含少儿不宜的词汇。

Last note, this episode contains bit of adult language and themes in the second segment.

最后请注意， 这一集在第二部分包含一些成人语言和主题。

According to this theory, children learn languages more easily because the plasticity of their developing brains lets them use both hemispheres in language acquisition, while in most adults, language is lateralized to one hemisphere, usually the left.

根据关键期假说理论，小孩学语言比较容易，因为他们发展中的大脑较有弹性，让他们同时运用左右脑学习语言，大部分的成人的语言学习是侧重于左脑。