我今天犯了个错误。

I made a mistake today.

youdao

我今天犯了一个错误！

I made a mistake today!

youdao

今天，我做数学作业的时候犯了一个错误。

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

youdao

今天早上，我犯了一个愚蠢的错误。

In the morning, I made a stupid mistake.

youdao

今天早上，我犯了一个愚蠢的错误。

In the morning, I made a stupid mistake.

youdao