semiochemicals

例句：

1. 1. The study of semiochemicals is crucial for understanding the effects of light on living organisms.
   研究半化学物对于理解光对生物的影响至关重要。
2. 2.The research team focused on developing new semiochemicals that could be used in agriculture to improve crop yields.
   研究团队专注于开发新的半化学物，这些半化学物可以在农业中被使用，以改善作物产量。
3. 3. In recent years, there has been a growing interest in using semiochemicals as natural pesticides due to their low environmental impact.
   近年来，由于其低环境影响，人们越来越关注使用半化学物作为天然农药。