你們有看到兩個戰士嗎？這兩個戰士每天在我們身體血液裡保護我們盡量不受到病毒的感染，這兩位戰士就是白血球，一直不停的巡囉，我們要感謝他們的保護ㄚ。
Two of my favorite infection-fighters on patrol, these white blood cells were formed in my bone marrow, then migrated to my blood stream where they have spent their lives cruising my body fighting the billions of microbes that constantly threaten to do me in! Thank you, white blood cells, for a job well done!
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