He must sift through the range of chemicals produced by the genes people have, the food they eat, the drugs they take, the diseases they suffer from and the intestinal bacteria they harbor.
英
美
- 他必须筛选各种条件,包括受试者的基因产生了哪些物质、吃的食物及药物、患有的疾病,以及肠道共生的细菌。