[Ask ] explanation of the sentence

看板EngTalk (全英文聊天)作者 (布洛街)時間8年前 (2016/10/13 02:00), 編輯推噓0(000)
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I read a sentence from an article in business magazine, and not quite certain about what the contributor meant, it goes as follow xxx's writing is witty and anecdotal,and his advice will do more good than harm, but if his aim is to impart understanding, the book(XXXX) is an opportunity squandered. ps: xxx is the anthor of XXXX My question is what does opportunity squandered mean? I looked up the word across all the online dictionaries, I haven't been sure of it yet. Does it mean the opportunity is a "rare catch"? or something else? Additionally, the contributor put it in a positive light or negative one? the word "squander" is used in a negative way now, that's why it confuses me. ask for advice , so grateful. -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 223.139.228.71 ※ 文章網址: https://www.ptt.cc/bbs/EngTalk/M.1476295212.A.696.html
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