pedochemical

例句：

1. 1. The drug was designed to treat conditions like cancer and arthritis.
   这种药物被设计用来治疗癌症和关节炎等疾病。
2. 2. Pedometers are commonly used by athletes to track their daily steps.
   计步器是运动员常用的工具，用于记录每天的步数。
3. 3.The study found that some pesticides can have harmful effects on the environment.
   研究发现，一些农药对环境有不良影响。