He realized he was in the wrong and promised to turn over a new leaf.

他认识到自己错了，承诺要重新开始。

《柯林斯英汉双解大词典》

Now I'll turn over a new leaf.

现在我的人生将翻开新的一页。

youdao

I will turn over a new leaf, sorry.

我会改过自新的，对不起。

youdao

To turn over a new leaf means to flip to a new page.

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Apple is understandably working to improve the mapping application, and removing Williamson appears to be part of an attempt to turn over a new leaf.

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Chhang said the verdict may not suit everyone, but he thinks Cambodians will be able to turn over a new leaf once the verdict is announced.

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