A:Are you sure you can't lend me five thousand dollars?
你确定无法借我5000元吗?
B:Hmm... I'll tell you what. I'll lend you four thousand dollars, but you have to pay me back next week.
嗯……我告诉你吧,我会借你4000元,但你必须下周还我。
A:It's a deal.
一言为定。