noun🔗Share시대, 연대A time period of indeterminate length, generally more than one year."Several eras of my family's history are documented in old photo albums. "우리 가족의 역사의 여러 시대가 오래된 사진 앨범에 기록되어 있습니다.timeperiodhistoryageChat with AIVocabulary GamePractice Reading
noun🔗Share시대A unit of time, smaller than eons and greater than periods."The Mesozoic and Cenozoic are two of the most well-known eras in the history of Earth. "중생대와 신생대는 지구 역사에서 가장 잘 알려진 두 시대입니다.timehistorygeologyageChat with AIVocabulary GamePractice Reading
