“往昔的”的英语可以翻译为：erst，erstwhile，ci-devant ...

往昔的点点滴滴涌上她的心头。Bits and pieces of the past raced through her mind.久远往昔的回忆memories of those far-off days他的谈话令人回忆起往昔的时日.His talk was evocative of the bygone days....