There are between 3000 and 6000 public languages in the world, and we must add approximately 6 billion private languages since each one of us necessarily has one.

世界上有 3000 到 6000 种公共语言，我们必须添加大约 60 亿种私人语言，因为我们每个人都必须拥有一种。

Chomsky meant that underneath all the differences between public and private languages, there is a universal language mechanism that makes it possible for us, as infants, to learn any language in the world.

乔姆斯基的意思是， 在公共语言和私人语言之间的所有差异之下，存在一种通用的语言机制， 使我们作为婴儿有可能学习世界上的任何语言。

There is definitely today, in public language, more use of words that used to be considered blasphemous against God or blasphemous against the authorities that say that you're not supposed to talk about sex and excretion.

今天，在公共语言中肯定会更多地使用过去被认为亵渎上帝或亵渎当局的词语，这些词语说你不应该谈论性和排泄。