proficiency in a particular field (idiom); skill in a specialized area
一 · 1 strokes
A single horizontal stroke, representing the number one.
技 · 7 strokes
Phonosemantic compound. 扌 represents the meaning and 支 represents the sound.
之 · 3 strokes
Pictograph of a foot (止) going out of an area. The current meaning is a phonetic loan.
长 · 4 strokes
Pictograph of an old person with long hair using a cane to walk. The simplified character 长 was adapted from the cursive form of the traditional character 長.
每个人都应该有一技之长。
proficiency in a particular field (idiom); skill in a specialized area (idiom)