치과dental surgery; dentistry; dentist’s office; dental clinic 치약toothpaste 충치tooth cavity; decayed tooth; carious tooth 치teeth 치석tartar; scale; plaque 치아tooth 치통toothache 유치milk tooth 의치artificial tooth; denture 절치부심strong desire to take revenge

열차train 가장행렬costume procession 급행열차express train 항렬generation 행렬line; parade; march 계열system; faction; department 계열사affiliate 계열화systematization 나열listing; enumeration 대열line; rank; file