blood

心脏不断地把血液泵送到全身。

The heart pumps ___blood throughout the body continuously.

护士今天早上给我抽了血做化验。

The nurse took my ___blood for testing this morning.

医生检查了他的血液样本。

The doctor examined his ___blood sample.

运动能让你的血液流动得更快。

Exercise makes your ___blood flow faster.