甚至可以從日本借錢放在美國銀行掙利率差，這種賺錢方法叫Carry Trade，一直有人做這方麵。

https://www.jhinvestments.com/viewpoints/investing-basics/what-is-a-carry-trade-#:~:text=A%20carry%20trade%20is%20an,difference%20between%20the%20two%20rates.