Gb	Eng
画报的封面上印上美女不过是吸引顾客的一种生意眼。	The pretty girl on the cover of the pictorial is just a sales gimmick.
评定一本书，不能凭封面。	Judge not a book by its cover.
这本书破旧了，封面上有墨渍。	The book is worn out and has ink stain on its cover.