화학조미료flavor enhancer; artificial flavors; chemical condiment 감탄조exclamatory tone 강조emphasis; stress 조key; tonality 조미료condiment 조사poll; survey; investigation 조절control 조정adjustment; change 조화getting along with; going with 취조investigation; inquiry

교과서textbook 도서관library 독서reading 서류document; papers 서점bookstore 엽서postcard 추천서letter of recommendation; letter of reference 가입서registration documents 계산서check; bill 계약서contract; written agreement