▲ 我請你吃午飯。 ● 哦，你真好。但為什麼要請我吃飯呢？ ▲ 我想謝謝你前幾天幫我粉刷房子。我欠你的。 這句話的英文怎麼說？ (學習英語會話)

▲ Let me treat you to lunch. ● Oh, that's nice of you, but why do I deserve that? ▲ I want to thank you for helping me paint my house the other day. I owe you.