这句话的英文回答In the air fresh or clean in your city?

这句话的英文回答In the air fresh or clean in your city? IS the air fresh or clean go your city? Is the air in your city clean?（实答） you should (keep the air clean and fresh) in your room. Is it "breathe the fresh air" or "breathe in the fresh air", Putting a p—— in the room can make the air fresh and clean S lark in the clean air 的意思 The air is fresh and clean in my village.此句式对吗? Trees can help _____ the air in the city.A to clean B clean 句子分析：Let the fresh air in. 划分句子成分(let)(the fresh air )(in). in the fresh air 连在一起怎么造句