柯林斯词典cusp /kʌsp/ 1. PHRASE If you say that someone or something is on the cusp, you mean they are between two states, or are about to be in a particular state. 介於兩個狀態之間; 將要進入特定狀態 I am sitting on the cusp of middle age. 我正処於中年。 返回 cusp剑桥词典the dividing line between two very different things 分界線 on the cusp of adulthood 即將成年 返回 cusp