我是人体内的一个小小成员,能抵抗外敌的入侵,对人体有着巨大的保护功能。猜猜我是谁?我就是人体卫士——白细胞。我无色透明,身材小巧玲珑,像一个品莹剔透的水晶球。身为一个小小的白细胞,我感到非常的自豪,因为我不辞辛苦地工作着,为消灭人体内的病菌作出应有的贡献。我的兄弟姐妹繁多:有人体的小小邮递员——红细胞,有人体的魔术师——造血干细胞,还有人体的守护神——巨噬细胞……我们团 I am a small member of the human body, able to resist the invasion of foreign enemies and have a huge protection function to the human body. Guess who I am? I am the bodyguard - white blood cells. I am colorless and transparent, small and exquisite, like a crystal clear crystal ball. As a tiny white blood cell, I feel very proud because I worked tirelessly to make due contributions to the elimination of germs in the human body. My brothers and sisters are numerous: Human postmen - red blood cells, human magician - hematopoietic stem cells, and patron sapiens - macrophages ... our group