I'm sorry, it's all my fault.

对不起，都是我的错。

It's all my fault, I will fix it.

都是我的错，我会解决的。

It's all my fault** that this happened.

发生这种事都是我的错。

You don't need to worry, it's all my fault.

你不用担心，都是我的错。

I know it's all my fault, please forgive me.

我知道都是我的错，请原谅我。

I feel like it's all my fault.

我觉得都是我的错。

Doug: (with sobbing voice) It's all my fault…If I had not.

豆：（哭音）都是我害的…如果我不插手，不多嘴，也许她就不会死了…