She was only claiming what was rightfully hers.

她只要求得到理应属于她的东西。

《牛津词典》

Jealousy is the feeling that someone else has something that rightfully belongs to you.

嫉妒是一种认为别人占有了本应属于自己的东西的情感。

《柯林斯英汉双解大词典》

We want more for our kids, and rightfully so.

我们希望我们的孩子能得到更多，这是理所当然的。

youdao

Milton's arguing that there's no authority that can rightfully exist outside of the conscience of the individual.

弥尔顿争论到政府不能,正当的存在于个人良心之外。

耶鲁公开课 - 弥尔顿课程节选

And many people rightfully so questioned the veracity, the value of these questionnaires, because it is subjective-- ? are we measuring something real?

很多人置疑问卷的，真实性和价值，因为它是主观的-,我们是在测量真实的东西吗？

哈佛公开课 - 幸福课课程节选

That means using existing tax law in a clever way to recoup what's rightfully yours.

FORBES: Side Lines

As DisatserNewsNetwork.com rightfully noted in a piece titled Does Media Coverage Exaggerate Natural Disasters?

FORBES: When the Levee Doesn't Break -- What's Wrong With the Media's Weather Coverage

Cyprian depositors are currently lining up at ATM machines to redeem what is rightfully their money.

FORBES: Cyprus, Anything But Unique and Why to Worry