2. Description: Printing as it is, which refers to reprinting books and pictures by non-original publishing houses.
3. Source: Hu Shi's textual research: "My friend Wang Yuanfang reread Water Margin and added new punctuation, which was printed and published by Shanghai Yadong Library. This is the first time to reprint an old book with new punctuation. "
4. The research method of Hu Shi, a scholar in the Qing Dynasty: "If you don't quote at the beginning, you will inevitably make mistakes in reprint."