Definition: to allow some of your blood or part of your body to be used for medical purposes Level: C1
他捐了一个肾给他的姐姐。
He ___donated a kidney to his sister.
他捐献了大量血液，救了我的命。
He saved my life by ___donating a large quantity of blood.
许多人捐献血液来帮助患者。
Many people ___donate blood to help patients.
