donor

她是一名自愿献血者。

She is a voluntary blood ___donor.

你考虑过登记成为器官捐献者吗？

Have you considered registering as an organ ___donor?

博物馆的新侧厅由一位慷慨的匿名捐赠者出资建造。

The museum's new wing was funded by a generous anonymous ___donor.