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单词 braille
释义

braille

Definition
System of raised (embossed) print 'read' by touch. It uses combinations of six dots arranged in columns three-dots high and two-dots wide to represent numbers and the letters of an alphabet. Used worldwide, it was invented in 1824 by Louis Braille (1809-1852) a French teacher of the blind when he was just 15 years old.
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更新时间:2025/1/22 21:53:56