These human emotions are universal, meaning they exist everywhere and relate to everyone in the world.

这些人类情感是普遍的，这是指它们无处不在，与世界上的每个人都有关。

You are an English speaker from Western Europe, and in the 19th Century 'universal' meant 'able to be understood by people from WesternEurope'.

你在西欧说英语，在19世纪，" universal" 的意思是" 能够被西欧人理解" 。

" To be universal" means that it is available to all children, not just the children in this area or the children in that area, just in the city or just for rich people.

“要普及” 是指所有的孩子都可以用，而不只是这个地区的孩子或那个地区的孩子， 只是城里的孩子或只是富人的孩子。