▲献血（捐血）

He went to donate blood secretly. 他秘密地去献了血。

He gave his blood to help his sister. 他献血帮助他的妹妹。

Donors give blood twice a year. 献血者一年献血两次。

We support our local hospital by giving blood regularly. 我们定期献血支持地方医院。

We support our local hospital by giving blood regularly. 我们定期献血支持地方医院。

The hospital appealed for more people to give blood. 医院呼吁更多的人捐血。

Some people have the erroneous notion that one can contract AIDS by giving blood. 一些人错误地认为献血会让人感染艾滋病。

▲抽血

The nurse drew blood from the patient for testing. 护士给病人抽血化验。

The nurse pricked his finger to draw blood. 那护士为了抽血在他的手指刺了个孔。

▲验血

He is waiting for the results of a blood test. 他在等着验血结果出来。

The blood tests prove that Vince is indeed the father. 验血证明文斯的确是父亲。

Without the results of the blood test, the doctor could only make a tentative diagnosis. 没有验血结果，医生只能作出初步的诊断。

If necessary X-rays and blood tests will also be used to aid diagnosis. 如有必要，还要进行 X 光检查和验血以帮助诊断。

I need to abstain from eating [=I need to not eat] for at least 12 hours before my blood test. 我至少要在验血之前禁食12小时。