你欠着某人一笔钱。
He did her out of a sum of money.他骗了她一笔钱。
One is randomly chosen to propose how a sum of money, known to both, should be shared between them; only one offer, which must be accepted or rejected without negotiation, is allowed.其中一人被随机挑选出来,提出双方都知道的一笔钱应该如何分配;只允许有一个报价,必须被接受或拒绝,没有谈判。