There is a loud noise when nails come in and out. As an ancient means of transportation, horses can also exist as war horses. They often fight in vests and run secretly.

The crossword puzzle is a word game, which is a unique linguistic and cultural phenomenon of Chinese characters. Mainly according to the characteristics of complex strokes, relatively independent radicals and changeable structural combinations of Chinese characters, it is set in various ways, such as clutch, loss-increasing, pictographic and knowing.

There are broad and narrow definitions of crossword puzzles. A word puzzle in a broad sense refers to all word puzzles, such as word puzzles, word puzzles, sentence puzzles and so on. In a narrow sense, a crossword puzzle refers to a riddle of a Chinese character.