shelf可以作动词吗？如果不可以这句话中的shelf怎么解释呢？chose to shelf 的to是介词还是不定式呢

Question

Decades ago, Kodak anticipated that digital photography would overtake film—and in fact, Kodak invented the first digital camera in 1975—but in a fateful decision, the company chose to shelf its new discovery to focus on its traditional film business.

Answer 1

the company 主语
chose 谓语
宾语（动词不定式）to shelf its new discovery...
shelf在这里很显然是动词，理解为“搁置”：柯达选择了搁置自己的新发明

Answer 2

choose to shelf还是close to shelf?追答

shelf只有名词词性，close to中close是形容词，to是介词

追问

就是chose to shelf，这是四级阅读真题中这么写的，但是确实怎么都解释不通，正因为shelf只有名词形式，所以感觉shelf its new discovery说不通，总感觉是出错了