Definition
even when considered in the most positive way
顶多，至多
The food was bland at best, and at worst completely inedible.
這些食物最好也只能算是平淡無味，最糟糕的情況下則是完全無法食用。
These treatments will bring only moderate pain relief at best.
這些治療最多只能帶來適度的疼痛緩解。
Her novels were considered lowbrow at best, positively tacky at worst.
她的小說最好也只能被認為是通俗作品，最糟糕的情況下則是非常俗氣。
at the highest standard that can be achieved
最佳狀態
The documentary was an example of investigative journalism at its best.
這部紀錄片是調查新聞學的最佳範例。
To watch these films is to see animation at its best.
觀看這些電影就是看到動畫的最佳表現。
At its best, architecture can transform lives.
在最佳狀態下，建築可以改變生活。