a run at it的用法和样例：
- You see, there is a run at the neck.
- His old raincoat became a running joke(= people kept laughing at it).
- He departed at a run towards the station.
- He is all on edge to have a look at it.
- Ringling Brothers and Barnum &Bailey starts a run at Staples Center on Wednesday, a booking long planned in advance.
a run at it的相关资料：