"cross your heart" in Chinese (Simplified)

我发誓

Definition

用于表示你说的话完全真实或真诚，经常伴随用手指在胸前画十字的动作。

属于非正式表达，多见于儿童或朋友之间，表达真心诚意的承诺。有时会加上“希望没骗你”加强语气。

I promise, I cross your heart I took your book by accident.

我保证，**我发誓**，我是无意拿了你的书。

Cross your heart, did you really finish your homework?

**你发誓**，你真的做完作业了吗？

She said she would help, and she cross your heart it was true.

她说她会帮忙，**她发誓**这是真的。

You can trust me—cross your heart!

你可以相信我——**我发誓**！

I'll keep your secret, I cross your heart and hope to die.

我会保守你的秘密，**我发誓**，如果说谎就让我倒霉。

My little brother says, 'Cross your heart you won't tell mom?'

我弟弟说：'**你发誓**不告诉妈妈吗？'