My eagle-eyed sister spotted the car in the parking lot before anyone else did.
(eagle-eyed means sharp vision have sharp vision )
You'd better pay him more, or one day you'll come to the office and find that he flew the coop.
(flew the coop means leave left flew the coop left)
（flew the coop指离开）
I'm afraid that if we don't reduce staff, we'll go belly-up within a year.
(go belly-up means go bankrupt)
Sure, I'll go out with Cynthia again. When pigs fly.
(when pigs fly means never)
（when pigs fly指永远不）
I have a bun in the oven again! Sofia will have a baby sister.
(a bun in the oven means pregnant have a bun in the oven pregnant be pregnant)
（a bun in the oven指怀孕的）