一技之长 yíjìzhīcháng proficiency in a particular field (idiom)
proficiency in a particular field (idiom); skill in a specialized area (idiom)
How to remember 一技之长: 一 one + 技 skill + 之 of + 长 long = proficiency in a particular field (idiom).
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How it is used
- 'A specialized skill one is good at' - a marketable competence - 有一技之长就不怕失业 (yǒu yíjìzhīcháng jiù bú pà shīyè) with a real skill you needn't fear unemployment.
- Very common in career/education talk, stressing the value of one concrete practical skill over vague qualifications.
- Structure: 一技(a skill)之长(strong point); 之 is the classical possessive linking them.