我想发明一种新型书。这种书名叫“纽扣书”,它像纽扣一般大小,既小巧又轻便,便于随身携带。它是采用现代最新的“海绵技术”制成的,看时洒几滴水就能放大,它可以根据洒水量而改变大小。新型书有两个特点：一是节约资源。它以废品、垃圾为材料,通过“合成技术”制造出来,一点儿也不浪费资源。二是能 I want to invent a new book. This book called “button book”, it is the size of a button, compact and lightweight, easy to carry. It is made using modern, modern “sponge technology” and can be enlarged by just a few drops when it is seen, and it can change its size depending on the amount of water sprayed. New book has two characteristics: First, save resources. It uses waste products and rubbish as materials and is made through “synthetic technology”, without wasting resources at all. Second, can