할증extra charge; additional charge; premium; surcharge 급증rapid increase 증가growth; rise 증가량increased amount; multiplied amount 증가율growth rate 증감fluctuation 할증료extra charge; surcharge; premium 격증heavy swell 증가세growing trend 증강reinforcement; buildup

투자investment 민속자료folklore material; folklore data 자격capacity; character 자격증license; certificate 자료material; data; reference 자본capital; fund 자원resource; material 출자investment; contribution 투자가investor 투자금investment amount