IOU的用法和樣例：
例句
用作名詞 (n.)
- I don't have the money so I'll give you an IOU.
我沒(méi)有錢(qián)，所以會(huì )給你一張借據。 - A bond, of course, is just an IOU, a promise to pay back money with interest by certain dates.
債券，當然，這只是一個(gè)借據，承諾到期歸還并支付利息的紙條。
詞匯搭配
- I.O.U. 借丹
