Russian fly

例句：

1. 1. The Russianfly is a common pest in many partsof the world.
   俄罗斯苍蝇是世界上许多地方的常见害虫。
2. 2. TheRussian fly has been aproblem for farmers in recent years.
   俄罗斯苍蝇近年来一直是农民们的一个难题。
3. 3. The Russian fly is responsible for spreadingdiseases and causing health problems.
   俄罗斯苍蝇负责传播疾病并引起健康问题。