超级砖头!!!
January 4 is the birthdate of Louis Braille, the inventor of Braille. World Braille Day is a tribute to the genius of Louis Braille, who, almost 200 years ago, revolutionized the lives of people who are blind, visually impaired, or deafblind with his invention of a simple yet sophisticated system of six raised dots. Used in various combinations, the six "magic" dots can be used to form letters of the alphabet, musical notations, chemistry symbols, numbers, and punctuation.