picrasmine

例句：

1. 1. Picrasin is a naturally occurring compound that has been used in agriculture for centuries.
   picrasin是一种自然存在的化合物，自古以来就被用于农业。
2. 2.The picrasin-producing bacteria are known to be harmful to humans and animals.
   生产picrasin的细菌对人类和动物有害。
3. 3. Due to its toxicity, picrasin is not commonly used as a food additive.
   由于其毒性，picrasin通常不作为食品添加剂使用。