glory days
noun [ plural ] uk/ˈɡlɔː.ri ˌdeɪz/ us/ˈɡlɔːr.i ˌdeɪz/
辉煌岁月
Someone's glory days are a period of time when they were very successful.
Her popularity as a singer has waned since the glory days of the 1980s. 作为歌星她曾在20世纪80年代红极一时，但随后其知名度就日渐下降。