Word vertical folding: mountains, faults and regions.
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Stroke (bǐ huà) usually refers to points and lines of various shapes that make up Chinese characters, such as horizontal (1), vertical (2), left (3), point (3), fold (3) and so on. It is the smallest Lian Bi unit of Chinese characters.
Stroke sometimes refers to the number of strokes, such as the Chinese character stroke index in front of a word book. When expressing these two meanings, "strokes" can also be used as "strokes", but now it is standardized as "strokes". In addition, strokes also refer to pictures with pen-and-ink strokes. This meaning is generally used in ancient books, but it is not commonly used or used now.
There are eight basic strokes in traditional Chinese characters, namely "point (个), horizontal (个), vertical (个), left (个), lifting, folding (个) and being hooked (个)