radix two counter

例句：

1. 1. The radix of the plant is located in the ground.
   这株植物的根部位于地下。
2. 2. The radix of the medicine was found to be effective against the disease.
   这种药物的根被发现对这种疾病有效。
3. 3. The radix of the plant is used for medicinal purposes.
   这种植物的根被用于药用。