hers和she’s区别

hers和she's区别
例如：Your car is red,she's blue.
Your car is red,hers is blue.是一样的意思吗?还是第一句不能用SHE'S BLUE?
再例：This book is hers,not yours.
This book is she's,not yours.这两句意思一样吗?
请帮我分辨下,有些糊涂,谢啦,麻烦通俗点,语法那些词语我都不太懂.

hers是名词,意思是‘她的’,she's等于she is ‘她是’.第一句不能用SHE'S BLUE,‘Your car is red,hers is blue.’和‘This book is hers,not yours.’正确,‘ This book is she's,not yours’应改为‘ This book is hers,not yours’翻译为‘这本书是她的,不是你的’