matrine

例句：

1. 1.The chemist discovered a new compound called matrine.
   化学家发现了一种叫做马特林的新化合物。
2. 2.The patient was given matrine to treat his condition.
   病人被给予马特林来治疗他的病情。
3. 3. Matrine is a natural pigment found in some plants.
   马特林是一种自然色素，存在于某些植物中。