필요need; necessity; requirement 필수requirement; must 필수essentials; requirements; necessities; a must 필수적being essential; being required; being indispensable 필수적essential; indispensable; required 필수품essentials; necessities 필요량requirement; amount needed 필요성necessity; need 불필요being unnecessary 생활필수품daily necessities

독서reading 구두점punctuation 독서실study room 독자reader 독후감book report 탐독devouring; reading avidly 통독reading through; reading from cover to cover 판독decipherment; reading 판독기reader 해독comprehension; interpretation

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