I made a mistake today!

我今天犯了一个错误！

youdao

I made a mistake today.

我今天犯了个错误。

youdao

Today, I made a mistake when I was doing my math homework.

今天，我做数学作业的时候犯了一个错误。

youdao

Today, I made a mistake when I was doing my math homework.

今天，我做数学作业的时候犯了一个错误。

youdao