This is not a matter for self-congratulation.

此事与自我夸耀无关。

《柯林斯英汉双解大词典》

And I wish I could tell you that he shook free of the warm fug of statist self-congratulation.

我希望能告诉你：他摆脱了国家主义者自我庆贺的强烈闷浊的氛围。

youdao

In SOME corners of the commercial-property market a slight whiff of self-congratulation is in the air.

在商业地产市场的某些角落里，空气中漂浮着一丝自得的气息。

youdao

But is this a bit of self love and self congratulation?

FORBES: At Davos, a romance with social entrepreneurship

There will be considerable backslapping and mutual self-congratulation that they have prevented Depression 2.0.

FORBES: Magazine Article

Watching the Oscar ceremony can be such a bore--an anti-climactic exercise in industry self-congratulation.

FORBES: Rules Of The Oscar Game