[舉手] 想請問銀樓換錢是怎麼賺的
假如今天美金買入30.5 賣出30.8
在銀樓我拿美金換台幣會比30.5高嗎
假如比30.5高那他們怎麼賺的
如果比30.5低那為何還要有人去銀樓換(除了黑錢)
麻煩高手解答一下謝謝
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