vital granule

例句：

1. 1. The vital granules in the vaccine are crucial for its effectiveness.
   疫苗中的活性颗粒对于其有效性至关重要。
2. 2.The researcher found that the vital granules in the plant could be used as a natural remedy.
   研究者发现植物中的活性颗粒可以作为天然疗法使用。
3. 3.The scientists developed a new method to extract the vital granules from the plant.
   科学家们开发了一种新方法，可以从植物中提取活性颗粒。