巨噬细胞通过清除体内的细菌和病毒来保护我们的健康。

___Macrophages protect our health by removing bacteria and viruses from the body.

巨噬细胞能清除体内的死细胞和病原体。

___Macrophages help remove dead cells and pathogens from the body.

巨噬细胞通过吞噬有害细菌来保护我们的身体。

___Macrophages protect our body by engulfing harmful bacteria.