at a glance

例句：

1. 1. Sheglanced at the clock before leaving the room.
   她离开房间前看了一眼时钟。
2. 2. The thief made a quick getaway by jumping overthe fence.
   小偷跳过栅栏，迅速逃跑了。
3. 3. He glancedat his watch and realized itwas time to leave.
   他看了看手表，意识到该走了。