介于两个状态之间的;将要进入特定状态的 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.
【搭配模式】：PHR after v
I am sitting on the cusp of middle age...
我将步入中年。
Mr Short's behaviour is only on the cusp of acceptability.
肖特先生的行为勉强能接受。
Noun
1. point formed by two intersecting arcs (as from the intrados of a Gothic arch)
添加到我的生词本
