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CJK strokes (simplified Chinese: 笔画; traditional Chinese: 筆畫; pinyin: Bǐhuà) are the calligraphic strokes needed to write the Chinese characters in regular script used in East Asian calligraphy. CJK strokes are the classified set of line patterns that may be arranged and combined to form Chinese characters (also known as Hanzi) in use in China, Japan, and Korea.