The received wisdom is that drinking eight glasses of water daily is beneficial.

received 是动词 receive 的过去分词形式，在这里作为形容词使用，表示"被普遍接受的"或"公认的"。 wisdom 的意思是"智慧、明智的看法"。 received wisdom 指被广泛接受的传统观点或普遍认同的看法。