I owe you one (ài ōu yú wān)

Idiom Gratitude

含义

used to express that you are thankful and plan to return the favor

用于表达感谢并计划回报恩惠 (yòng yú biǎodá gǎnxiè bìng jìhuà huíbào ēnhuì)

例句

"Thanks for helping me move, I owe you one!"

"谢谢你帮我搬家,我欠你一个人情!" (xièxiè nǐ bāng wǒ bānjiā, wǒ qiàn nǐ yīgè rénqíng)