WBC or pus cells 白细胞或脓细胞
You have a middle ear infection when germs get into the middle ear and the area fills up with fluid (or pus), which contains germ-fighting cells.
当微生物进入中耳引起感染，小气袋里就会因此充满脓液，这些脓液里包含了抗菌细胞。
These white blood cells along with other debris create pus, which is what gives pimples their white or yellowish center.
这些白血细胞与其他碎片创建脓液，这是使粉刺其形成白色或微黄色的中心。
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