Tā liǎn shàng hái zhìqìwèituō, yǐjīng tà shàng le zhànchǎng.
His face still bore traces of childhood, yet he had already stepped onto the battlefield.
Tips
usage
Stock journalism phrase for young athletes, soldiers, or prodigies — usually appreciative, sometimes affectionate. Literally 'childish air not yet shed'. Often paired with 脸上 or used attributively before nouns describing the person.