the American artist Richard Prince’s photograph of a photograph,Untitled (Cowboy),was sold for $ 1,248,000./

问题描述:

the American artist Richard Prince’s photograph of a photograph,Untitled (Cowboy),was sold for $ 1,248,000./
其中的photograph of a photograph如何理解

句子意思是:一张美国艺术家理查德王子无标题(牛仔)的照片卖了1,248,000 美元.
你不能把photograph of a photograph拿出来单独理解,这儿a photograph相当于the American artist Richard Prince’s photograph .
原句也可以这样说:
One of the American artist Richard Prince’s photographs ,Untitled (Cowboy),was sold for $ 1,248,000.