They also introduced fish that eat mosquito larvae into catch basins and put insecticide pellets into sewers.

  • 他们还推荐了一种鱼,这种鱼善吃附着于下水道人口处的铁格子上的蚊子;官员们还要求大家往下水道里撒一些球状杀虫剂。
目录 查词历史