on cue
成語所屬單字cue
on cue — 慣用語
1. happening at exactly the moment you would most expect, often just after someone
1.慣用語
釋義
說時遲那時快
happening at exactly the moment you would most expect, often just after someone has mentioned it.
例句
Right on cue, the bus arrived the second Kabir reached the bus stop.
Defne said it would rain at noon, and right on cue the sky opened up.