leukocyte infiltration

例句：

1. 1. Thepatient's blood showed a high levelof white blood cells, indicating an activeinfection.
   病人的血液显示白细胞水平高，表明有活跃的感染。
2. 2. The study foundthat the immune system was suppressed bythe drug, leading to leukocyteinfiltration.
   研究发现，该药物抑制了免疫系统，导致白细胞浸润。
3. 3. Inflammation is a natural response toinjury or infection, but excessive leukocyte infiltration can leadto tissue damage.
   炎症是对损伤或感染的自然反应，但过度的白细胞浸润可能导致组织损伤。