The letter mentioned my great aunt and uncle only incidentally.

信里只是附带地提到我的叔祖母和叔祖父。

《柯林斯英汉双解大词典》

My aunt has only one child, and she wants a second child.

我姑姑只有一个孩子，她想要第二个孩子。

youdao

My children will only hear stories of the girlhood of their aunt, both stories of reality and an imagined future.

我的孩子将来也只能听到他们的姑姑少女时代的故事，那些真实发生的故事，以及想象中的未来。

youdao

But it seems like only yesterday her older sister, my aunt, warned about the dangers of waiting too long, or being too educated, to be married.

CNN: African moms: Be patient with your unmarried daughters

Aleph was the only obstacle to my making the trip, because, now that my Aunt Raquel had gone into a home, there was no-one I could leave him with.

NPR: Excerpt: 'Borges and the Eternal Orangutans'