Ask for an English composition topic named "I know _ _ _", which introduces the traditional skills of 60~80 words.

Chinese paper-cutting is an art with a history of 1500 years. This is the first paper-cut design since the invention of paper. There is a single image and a symmetrical design. This exquisite work of art is usually created by paper-cutting artists with scissors and/or knives. Today, paper-cutting is mainly decorative. They are often used to decorate walls, windows and doors, and are also used as gifts or as gifts. In 2009, Chinese paper-cutting became one of the world cultural heritages.