on edge
紧张不安, 急切
例句与用法：
He is all on edge to have a look at it.
他急于想看一看那个东西。
The mother was all on edge when her son was having a blood test.
那位母亲在儿子接受血检时，心情十分紧张
The lemon juice set his teeth on edge.
柠檬汁把他的牙齿都酸倒了。
She was a bit on edge till she heard he was safe.
她听到他安然无恙才放下心来。
ph.
紧张的; 急切的