Four years of closeness and sharing at the end of which she

句子大意“经过四年亲密无间的生活,最后她还是伤透了你的心。”这里的of which 是根据at the end of这个短语而来,which指代前文“four years of closeness and sharing”,at the end of which是介宾短语表时间,原句原为Four years of closeness and sharing, at the end of the four years of closeness and sharing ,she ripped your heart out。但是英语中忌讳重复,所以通常用别的词去指代,省略部分重复内容,所以也就变成了Four years of closeness and sharing at the end of which she ripped your heart out。 希望帮到楼主。