作为名词to keep the environment 和keeping the environment意思一样吗?

作为名词to keep the environment 和keeping the environment意思一样吗? keep to the keep to the keep to the timetable keep名词 Mike uses the bag to keep his clothes对to keep his clothes提问Was he born in 2011 作为否定回答 this volunteers go about the project ----(aim) to provide a safe school envi help作为名词使用for,作为动词用to吗 We try to keep the b______(平衡） of nature请填空.（keep后面不是形容词吗?怎么这里是名词?） please keep quiet and listen to the teacher‘s（decide）是用名词还是用动词 keep close to the ground always keep the faith!hope to the always keep the faith,hop to the always keep the faith ,hope to the It's good to keep the time.keep Keep going and try to keep the rhythm. keep+形容词还是名词? keep的名词是什么