she's和she is的区别,什么时候怎么用,

she's和she is的区别,什么时候怎么用, she‘s和she is 的区别 什么时候用she's,什么时候用her she always eat 和she is always eat 的区别 she is of medium height 和 she is medium height 的区别.she is of hers和she's区别 she与she's的区别 She looks younger than she is.和She is younger than I.的区别? 英语的人称加‘s和直接加s有什么区别,怎么用.如he's she's it's和shes hes its She's和her有什么区别?应该怎么应用? who is ***?什么时候用 it is 和什么时候用she\he is It's her 和 It's she 的区别