noun🔗Share时代，时期。 A time period of indeterminate length, generally more than one year."Several eras of my family's history are documented in old photo albums. "在旧相册里记录着我家好几个时代的历史。timeperiodhistoryageChat with AIVocabulary GamePractice Reading
noun🔗Share时代，时期。 A 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. "中生代和新生代是地球历史上最著名的两个时代。timehistorygeologyageChat with AIVocabulary GamePractice Reading
