at one's best

at one's best
prep. phr.
In best form; displaying one's best qualities. 处于最佳状态；处于全盛时期；显示出最佳品质。
- Tim is at his best when he has had a long swim before a ball game. 蒂姆在球赛前如果来个长距离游泳就会表现出最佳水平。

- 英语>简体中文, 美国习语词典

at one's best
in one's best state 在最佳状态；在全盛时期
- He is at his best with friends. 他同朋友们在一起时最开心。
- The peach blossoms are at their best now. 桃花正在盛开。
- She is at her best in the morning. 她早上情绪最佳。