long-ago

形容词 long-ago:

1. belonging to time long gone

副词 long-ago:

1. of the distant or comparatively distant past is Scottish
   同义词：long ago, long since, lang syne

long-a.go

adj.（形容词）
Of, related to, or occurring in the past:
以前的，往日的：过去的、与过去有关的或发生于过去的：
例句：
a long-ago espionage trial.
以前的间谍审判