Her parents died while she was still at school.

她还在读书时父母就去世了。

《牛津词典》

When her parents died, they left her a lot of money.

她父母去世时，给她留下了一大笔钱。

youdao

Her parents died a long time ago.

她的父母很早以前就去世了。

《牛津词典》

When Sarah was seven years old, her parents died of the disease yellow fever.

VOA: special.2010.03.28

These days, it rarely snowed the way it had back in the years before her parents died.

NEWYORKER: Another Manhattan

Although it is well known that longevity is hereditary (the best predictor of someone's life expectancy is the age at which his or her parents died), it is not clear why this should be so.

ECONOMIST: Ageing

Her parents, who have subsequently died, also forced her other sisters to enter into arranged marriages, she said.

CNN: 'Honor' crime: Why just kissing a boy can trigger murder