백인white person 흑백black and white 고단백high protein 고단백질high protein 고백confession; confiding; making a clean breast of something; fessing up; coming clean 백사장white sand beach 순백색pure white 청렴결백integrity; incorruptibility 청백리incorruptible government employee 표백bleaching

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