摘要： 双重所有格.例如:a friend of my father's. [注意] 如果两个名词并列.并且分别有 's.则表示“分别有 .例如:John's and Mary's rooms(约翰和玛丽各有一间.共两间),Tom's and Mary's bikes. 两个名词并列.只有一个's.则表示“共有 .例如:John and Mary's room,Tom and Mary's mother. [实例解析]

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