lit.: Seeing a lot will broaden your horizon and knowledge
Someone who is experienced and knowledgeable.
Source: Google Image Search
明·冯梦龙《古今小说》卷一:“还是大家宝眷,见多识广,比男子汉眼力到胜十倍。”
Source: baike.baidu.com
From "Ancient and Modern Stories" (Vol.1) of the Ming Dynasty, written by Feng Menglong: "The judgement of wife and children, who have seen a lot, is ten times more knowledgeable than that of a man's."
他是一个见多识广的商人。