clean air意思是纯洁空气。例句：（一）You can't buy clean air in a bottle, he said.（二） Structure of the Clean Air Act.（三） I live in a place with clean air.

扩展资料：

（一）The filtration system provides the crew with clean air free from fumes.

过滤系统使得全体人员能够呼吸到没有烟雾的清新空气。

（二） The Study on Clean Air Supply Unit for Operating Room.

手术室局部洁净送风单元的研制。

（三） Clean air, clean water and rich forest and wildlife.

干净的水，丰富的森林资源以及野生动植物。

（四） Take action，have your say，claim your right to clean air.