You have my word

To express a deeper commitment, use "You have my word." This makes you more accountable to someone, conveying that you're on board and will make it happen... whatever it takes.

如果想要做出更大的承诺，你就可以说，“我向你保证。”这样的表态会让你看起来更可靠。在对方眼里，你已经进入角色，并且会尽一切努力去完成的。

No, but if you escape with me tonight, you have my word.

不行，除非你和我今晚能逃出去，我向你保证

No one will talk to your daughters, you have my word.

没人会再靠近你的女儿们。我保证。