a period of time of which particular events or stages of development are typical

the Jefferson era 杰斐逊时代

a bygone (= past) era 过去的时代

the post-war era 战后年代

They had worked for peace during the long era of conflict. 在漫长的冲突不断的年代里，他们努力争取和平。

The fall of the Berlin wall marked the end of an era. 柏林墙的倒塌标志着一个时代的结束。