I had a little laugh to myself.

我暗自笑了笑。

《柯林斯英汉双解大词典》

When I was a shy little girl, for instance, I imagined I was bold and outgoing; I could tell great jokes, and everybody would laugh.

就说吧，当我小时候，还是个害羞的小女孩的时候，我希望我能变得胆大、外向：我能讲世界上最好笑的笑话，每个人都会被我逗笑。

youdao

"I was wrong to laugh at her." a little work when times are good is a big help when times are bad.

境遇好的时候做一点工作，在境遇不好时，会是很大的帮助。

youdao

Professor HARRIS-LACEWELL: Well, I have to laugh a little bit because, you know, we're academics, so it's shocking to you that anyone even reads the work that we do, but what I do hope is that it demonstrates that there are real divisions here that are not just about chocolate cities and vanilla suburbs.

NPR: Study on Race and Rebuilding New Orleans

It wasn't just self-congratulatory laughter at a high-brow joke. (OK, maybe a little.) I also had a laugh at myself: I've tried for so long to understand Philip Glass, and all it took was a one-act parody?

WSJ: Parsing a Playwright's Universal Language

Of course, for purposes of research and intellectual curiosity, I felt it was my duty to purchase some of these newspapersm and - I should admit - that after brushing aside my own scepticism, had a little laugh!

BBC: A Hamster ate my Granny!