https://blog.wongcw.com/2021/11/22/%e7%be%8e%e5%9c%8b%e5%b0%8d%e5%8a%a0%e5%af%86%e8%b2%a8%e5%b9%a3%e4%ba%a4%e6%98%93%e5%be%b5%e7%a8%85%e6%af%8f%e5%b9%b4%e5%b8%b6%e4%be%8628%e5%84%84%e7%be%8e%e5%85%83%e6%94%b6%e7%9b%8a-%e4%bd%86/
美國對加密貨幣交易徵稅每年帶來28億美元收益 但如何釐清是個難題