eraKK [ˋɛrə] /ˈɛɹə/名詞1時代、年代、時期The invention of the smartphone began a new era in communication.智慧型手機的發明開啟了通訊的新時代。2紀元His resignation marked the end of an era for the company.他的辭職為公司一個紀元劃下句點。3代地質學Dinosaurs dominated the land during the Mesozoic era.恐龍在中生代稱霸陸地。4階段、時期口語I'm in my quiet, stay-at-home era right now.我現在正處於安靜待在家的階段。