blood可数吗

　　blood的'用法例句

　　1.He wiped away the blood with a paper napkin.

　　他用纸巾将血迹擦去。

　　2.I'm a blood donor; I can't risk any contagion.

　　我是献血者，我不能冒任何接触传染的危险。

　　3.The victim suffered a dreadful injury and lost a lot of blood.

　　受害者受了重伤，大量失血。

　　4.He is being constantly monitored with regular checks on his blood pressure.

　　他被实时监测，定时量血压。

　　5.The rage in his eyes made her blood run cold.

　　他眼中的怒火吓得她汗毛倒竖。