After all, we all know the sky is grue, right?

毕，都知道天空是阴沉的，对吧？

So you have many languages that have a term to denote both green and blue and typically we call this a grue term.

因此，许多语言都有一个术语来表示蓝，通常称之为蓝术语。

Languages that don't have a separate word for blue often group green and blue together in one category, which linguists call grue.

没有单独的蓝词的语言通常将蓝归为一类，语言学家称之为 grue。

For example, there are actually enough cultures around the world that don't distinguish between green and blue that researchers in this field usually just call them by their couple name: grue.

例如，实际上在世界很多文化中，是不区分蓝，该领域的研究人员通常用它的结合词来称呼：蓝。