by·gone
adjective/ˈbaɪɡɒn/
/ˈbaɪɡɔːn/
[only before noun]- happening or existing a long time ago
很久以前的；以往的 - a bygone age/era
一个过去的时代／历史时期 - The family story was that, in bygone days, he had been a rich farmer in Australia.
这个家庭的故事是，在过去，他是澳大利亚的一位富有的农民。 - The horse and cart belongs to a bygone era.
马车属于过去的时代。
Oxford Collocations DictionaryBygone is used with these nouns:- age
- era
- a bygone age/era