You two had a fling.

你们俩有一腿。

youdao

You can marry her, or have a fling with her.

你可以娶她，也可以仅和她一夜风流。

youdao

Oh, we had a fling last summer, but we're just friends now.

喔，那只不过是去年夏天一时放纵罢了，现在我们只是朋友。

youdao

there is a huge festival, "The Venice Beach Spring Fling."

会有一个大型节日，“威尼斯海滩春季狂欢”。

请记住我 - SpeakingMax英语口语达人

Boswell's heirs destroyed a passage in his diary where he describes a fling he had with Rosseau's mistress.

NPR: Family Pauses over Woman's Posthumous Request

Pratt comes from an era when editors were kind of famous she even had a fling with one of her cover models, Drew Barrymore.

FORBES: Jane Pratt: Everybody's Husband Is Gay

With Bridget Moynahan, as his wife, and the vibrantly intelligent and beautiful Margarita Levieva, as the soulful young Russian writer and philosophy student he has a fling with.

NEWYORKER: Noise