out-of-pocket expense的用法和样例：
例句
用作名词 (n.)
- Small payments that are impractical to make with a check are paid out of the petty cash fund.
那些没有必要用支票支付的小额款项由小额库存现金支付。
词汇搭配
- out-of-pocket expense 现金支付
- out of pocket expense 实际的花费
