He acknowledged his mistake to the teacher and promises that he should improve next time.

他最终向老师承认了错误并保证下次改进。

youdao

Later he said he couldn't tolerate the "disintegration of Russia," and acknowledged his actions might have been a mistake.

到了后来，他说他不能容忍“俄国的瓦解”，并承认他的那些措施可能是一个错误。

youdao

The call to Bild had been a serious mistake, he acknowledged, but he was only trying to protect his family.

ECONOMIST: The president tries to ride out a home-loan scandal

He acknowledged to jurors that he in fact did receive money from the builders of the prison but his only mistake was not reporting that money on his TAX RETURNS!

FORBES: Even Judges Commit Crimes, Bad Ones