치과dental surgery; dentistry; dentist’s office; dental clinic 교과서textbook 내과internal department 피부과dermatology; department of dermatology 학과major; department 경영학과Department of Business Administration 경제학과Department of Economics 과목subject 과장head; chief; director; supervisor 과학science

무료free; no charge; complimentary 요금fare; fee; charge 요리cooking 요리사cook; chef 음료drink; water; soda 음료수drinking water 재료material; ingredient 통행료toll; passage money 통화료telephone service charge; call charge 항공료airfare; flight fare