환경environment 경계boundary; border 경우reason; principle 자연환경natural environment 친환경being eco-friendly 친환경적being eco-friendly 친환경적eco-friendly 환경미화원cleaner 환경적being environmental 황홀경ecstasy; trance; rapture

국내interior of a country; domestic territory 내과internal department 내용content; substance 시내downtown 안내introduction 안내문letter of notice; notice; introduction 안내인guide; docent; receptionist 교내being in school 국내선local line; domestic service 국내적local; domestic