初中英语关于invent和discover的问题

题目

初中英语关于invent和discover的问题
Who invented tea?
Did you know that tea,the most popular drink in the world（after water）,was invented by accident?Although tea wasn't brought to the Western world until 1610,this beverage was discovered over three thousand years before that.According to an ancient Chinese legend the emperor Shen Nong discovered tea when he was boiling drinking water over an open fire.Some leaves from a nearby bush fell into the water and remained there for some time.The emperor noticed that the leaves in the water produced a pleasant smell.Later he decided to taste the hot mixture.It was quite delicious.And in this way,one of the world's favorite drinks was invented.
在这篇文章中,为什么表示发明茶,既有invent又有discover?有什么差异?

答案

前者指的是 作为饮料 所以用 invent .以前没有 这种饮料.
后者指的是 作为植物 所以用discover, 这是本来就有的,就存在的.