I did something similar after I went to college. The teacher asked me to buy Notes on Explaining Words. I compared the two versions of Zhejiang ancient books and Shanghai ancient books and found that the contents of the two versions are exactly the same (both copies). The only difference is that the format of Zhejiang ancient books is small, while the format of Shanghai ancient books is large, and the price difference is nearly 100 yuan. In view of the fact that Shuo Wen Jie Zi Zhu is a reference book, it doesn't matter if the word is smaller, so I bought Zhejiang ancient books. Then the teacher asked me to read a few pages every day. The agreement is just to look up words, let me read them, and have a magnifying glass.
So I'm going to resell it When I found the buyer ready to sell, I found that the other party was a sister. I was embarrassed to ask for money and sent it directly.