他不愿承认自己的错误。

He was loath to admit his mistake.

《牛津词典》

该国未承认自己的错误，只是对这个问题稍作修改。

Instead of the country admitting its error, it just tinkered with the problem.

《柯林斯英汉双解大词典》

承认自己的错误有什么可羞惭的呢?

What is there to be ashamed of confessing one's errors?

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