active organic matter

例句：

1. 1. The team isactive in promoting environmental conservation.
   该团队积极促进环境保护。
2. 2. The young scientist is active inresearch and development.
   这位年轻的科学家在研究和开发方面非常活跃。
3. 3. The company is activelyseeking new investors to expand its business.
   该公司正在积极寻求新的投资者来扩大其业务。