In primary viremia the virus infects a part of immune system in the liver and spleen, called the reticuloendothelial system, which is made of phagocytic cells.

第一次血症，入侵肝脾部分免疫系统，即由巨噬细胞组成网状内皮系统。

Eosinophils are also phagocytic, and they're best known for fighting large and unwieldy parasites because eosinophils are much larger than neutrophils and have receptors that are specific for parasites.

嗜酸性粒细胞同样具有吞噬作用，它们以对抗巨大笨重寄生虫闻名，因为嗜酸性粒细胞要比性粒细胞大得多且有专门针对寄生虫受体。

When bacteria or viruses enter the body in sufficient numbers to overcome these phagocytic cells at the site of local infection, the next line of defense consists of lymphocytes.

当细菌或以数量进入体内以克服局部感染部位这些吞噬细胞时，下一道防线由淋巴细胞组成。

Next up are the monocytes, macrophages, and dendritic cells, which are phagocytic cells - they gobble up pathogens, present antigens, and release cytokines - tiny molecules that help attract other immune cells to the area.

接着是单核细胞、巨噬细胞和树突状细胞，三者都是吞噬细胞；它们大口吃原体，呈递抗原，并释放细胞因子（即帮助号召其他免疫细胞救兵来到局部微小分子）。