While true, this also involves a "Tower of Babel" stage in which no one in the family seems to be speaking any common language.

这种看法没错，但也会经历“巴别塔”阶段，就是家庭成员之间看起来说的不是同一种语言。

youdao

Many seemingly different languages are actually genetically related as sisters or Cousins of a big language family and have developed from a common, possibly "dead", ancestral language.

很多看似不同的语言实际上存在亲密的亲缘关系，它们可能来源于同一种可能已经消失拉丁古代语言。

youdao

I don't know why! We use common language, we are brother's and sister's so we are a family why oneself person dozen oneself person!

我为什么不知道！我们使用共同语言，我们是兄弟的和姐妹的，因此我们是一家人为什么要自己打自己！

youdao