你愿发誓说你所说的都是真的吗？

Will you swear to the truth of what you said?

youdao

他吓得举起双手，仰望着天空，向天祈求说：“我刚发誓，如果捉到偷牛犊的贼，我愿供奉一只羊给树林守护神。

Terrified at the sight, he lifted his eyes and his hands to heaven, and said: "Just now I vowed to offer a lamb to the Guardian Deities of the forest if I could only find out who had robbed me;"

youdao