为什么单词story-book 中间要用连词符号?而math book,Chinese book,都不用?

为什么单词story-book 中间要用连词符号?而math book,Chinese book,都不用? Many ______________ten Yuan buying the story book 为什么要用spent the end of a story ,book ,film .可以用哪个单词代替 story-book 用character、story、film、book、child组词! story-book的中文 story-book的复数 story book是什么 his father is sitting at the desk,reading a story-book.中为什么用reading 不用is reading 或 read 初中介词用法the story ___ the book.the picture ___ the newspaper.用on 还是 at 还是 in为什么? 用括号里的单词的正确形式填空 I have（ ）story books.The（ ） book is about animals (nine) story-book is for you.开头单词是A.Here,s B.this C.That 对reading a story book用什么提问 read book,book要用复数么吗?为什么? story-book和story book有什么区别么? story-book和story book有什么区别么? how interest the story book This is () useful story book..