sap extraction

例句：

1. 1. The scientists extracted a new drugfrom the plant.
   科学家们从这种植物中提取了一种新药。
2. 2. The farmers drew waterfrom the well.
   农民们从井里抽水。
3. 3. They took samples of the soilto analyze its content.
   他们取了土壤样本进行分析。