hers /hə:z/ pron.她的(名词性物主代词形式)Is that his or hers?那是他的还是她的? I’ve borrowed a book of hers. 我借了她的一本书。 

herself /hə:ˈself/ pron. 她自己:She hurt herself. 她伤了自己。She told me the news herself. 这消息是她亲自告诉我的。She’s not quite herself today.她今天有些失常(不舒服)