This is Mike and John's desk.和This is Mike's and John's desk.有什么区别

问题描述:

This is Mike and John's desk.和This is Mike's and John's desk.有什么区别
还有一个和This is Mike’s and John desk区别

This is Mike and John's desk.这是"mike和john"的桌子
This is Mike's and John's desk.这是"mike的桌子"和"john的桌子"
This is Mike’s andJohn desk.这个句子有语法错误,不存在这种说法