四级士官 Traditional form: 四級士官 Pinyin (reading): sìjíshìguān Definitions: sergeant first class Characters: 四 - four 级 - level, rank; class, grade 士 - scholar, gentleman; soldier 官 - official, public servant Traditional characters: 四 - four 級 - level, rank; class, grade 士 - scholar, gentleman; soldier 官 - official, public servant