The stuff we call earwax has a more scientific name: cerumen.

我们称之为耳垢的东西有一个更科学的名字，叫做耵聍。

So earwax is good. It even has a medical name: cerumen. And there are two kinds.

所以，耳垢是好的，它甚至还有一个医学名字：耵聍。耳垢主要有两种。