Leukocyte (or whiteblood cell or whitecorpuscle) : Any of several types of blood cells that help defend the body from infection.
白血球：防卫身体免于感染的数种血球细胞的统称。然而，他毫不迟疑地保护他的女儿。
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The Separation efficiency of red blood cell, whitecorpuscle and blood platelet from pig blood was investigated by chromatographic columns of four celluloses and two ion-exchange resins.