He looks like he's got an axe to grind. Better have a talk with him.

他看来是牢骚满腹，你最好找他谈谈。

《新英汉大辞典》

Mr Ozawa's enemies in the justice system may have an axe to grind.

而小泽在司法系统上的敌人也许另有图谋。

youdao

I have an axe to grind!

我有把斧子要磨。

youdao

And even if they are employees, maybe they have an axe to grind.

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He may well have an axe to grind as well as a book to sell, but he is not the first person to call for Mr Ballmer to be replaced.

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Companies that have an axe to grind with the European Competition Commission will be more compelled to take legal action against it now that the regulator has been told for the first time to pay damages for misjudging the legality of a takeover.

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