Heyday
heyday /ˈheɪdeɪ/
n. 全盛时期，巅峰时期，年轻力壮之时
It refers to the period of greatest prosperity or productivity; or the time when someone is the most powerful, successful, or popular.
它指的是最繁荣时期或生产力最强盛的时期;或是指某人年轻力壮、最成功、最受欢迎的时期。
The 19th century was the heyday of steam railways.
19世纪是蒸汽火车的全盛时期。
He is sure to win the game in his heyday.
全盛时期的他，一定能赢得这场比赛。
