The difference between Cornell's English book and the four-line English book lies in the different cover and content. The difference between Cornell's English book and the four-line English book lies in:

1, the cover is different. Cornell English has the Cornell brand logo on the cover, but four lines of English don't.

2. The content is different. In addition to four lines, Cornell's English book also has wrong pages, but there are no wrong pages in the four-line English book. So the difference between Cornell's English book and the four-line English book is that the cover is different and the content is different.