n the period of greatest prosperity or productivity
n. 全盛期
interj. 嘿
1. The company's heyday was in the 1990s when it was the leading brand in the market.
这家公司的辉煌时期是在90年代，那时它是市场上的领先品牌。
2. Many artists find their heyday during their twenties and thirties.
许多艺术家在他们的二十岁和三十岁时迎来了自己的巅峰时期。
3. The novel became famous in its heyday, selling millions of copies worldwide.
这本小说在它的全盛时期变得非常著名，全球销量达到了数百万本。