era，英语单词，主要用作名词，意为时代；年代；纪元，人名；（意、芬、印）埃拉。

根据柯林斯英汉双解大词典：

意为：

N-COUNTYou can refer to a period of history or a long period of time as anerawhen you want to draw attention to a particular feature or quality that it has. 时代

new era新纪元报

the contemporary era当代

cenozoic era新生代

mesozoic era中生代

christian era公元；基督纪元

palaeozoic era古生；古生代

paleozoic era古生代

current era当今时代

proterozoic era元古代；原生代

cainozoic era新生代