systemics内呼剂,内吸剂systemicadj.全身的；系统的n.内吸性杀虫剂Systemic RNA interfernce系统性RNAisystemic filling pressure体循环充盈压systemic venous anomalies系统性静脉异常systemic blood flow index全身血流指数Systemic fibrinogenolysis系统性纤维蛋白原溶解Systemic cluster analysis聚类分析systemic oxygen transport全身氧运输systemic financial crisis系统性金融危机Systemic fungal infection全身性真菌感染systemic health education系统健康教育

1. The scars of these ancient infections are also visible in the host immune system genes that constantly adapt to fight the ever evolving retroviruses.
   而宿主的免疫系统基因上也有久远前感染而留下的痕迹，这些基因为了对抗那持续演变的反转录病毒，经常得进行修改。