你救了我的命。
A: You saved my life yesterday, Rachel. I can't believe I forgot to bring my wallet when we went to lunch with those clients.
B: It was a good thing I had enough on me.
A: Let me buy you lunch today to pay you back.
甲:你昨天帮了我大忙,瑞秋。我真不敢相信与客户共进午餐时,竟然忘了带钱包。
乙:幸好我带足了钱。
甲:今天让我请你吃午餐来还这个人情吧。