Tom's and Betty's 和Tom and Betty's的区别

Tom's and Betty's 和Tom and Betty's的区别
Tom's and Betty's 和Tom and Betty's的区别

Tom's and Betty's 和Tom and Betty's的区别
Tom's and Betty's 是两个人分别所属的
Tom and Betty's是两人所共有的~
比如 Tom's and Betty's father 是Tom的爸爸 和 Betty的爸爸,是两个人~
Tom and Betty's father 是Tom、Betty的爸爸~爸爸是一个人~

Tom's and Betty's rooms 分别 两个人的房间
Tom and Betty's room 两个人共有的房间