Joke Collection Website - Bulletin headlines - How can I get rid of the decal paper stuck to the board?

How can I get rid of the decal paper stuck to the board?

Tell you a simple and practical method. Sprinkle hot water evenly on the board with paper flowers, stay for 10-20 minutes, find a putty scraper and press it on the place with paper flowers, then shovel off the place with paper flowers smoothly, and finally rinse it with clear water, and it will be clean.