The ferry service of bygone days has been replaced by that tunnel.

往日的渡口已被那个隧道取代。

《新英汉大辞典》

Of course he spoke with a conventional sense of duty only, for that sort of wondering had not been unknown to himself in bygone days.

当然，他说这话的时候，是出于一种习惯的责任感，因为在过去他自己也不是没有产生过这样的疑问。

youdao

Millions of fans identify intensely with the highs and lows of their favourite sports team, perhaps a modern substitute for the tribal loyalties of bygone days.

数百万的球迷与他们支持的球队一起同喜共悲，也许古人对其部落的忠诚也不过如此。

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One would have hoped that these views of working women were relegated to bygone days.

FORBES: Readers Say

Based on artifacts, kings and queens of bygone days seem to have been particularly fond of burlwood items.

NPR: Excerpt: 'A Splintered History Of Wood'

And in those bygone days, children, money actually earned interest which was a major reason to consider means of deferring gain.

FORBES: Sometimes You Should Just Pay The Tax