impure atrial flutter

例句：

1. 1. The water in the bottleis impure.
   瓶子里的水不纯。
2. 2.The food was impure and made hersick.
   食物不纯，让她生病了。
3. 3.The soil is impure and needs tobe treated before planting.
   土壤不纯，需要处理后才能种植。