flat out

全速地, 直率地

例句与用法：

After running in the marathon, she was flat out for a week.

她参加马拉松比赛后一星期都疲惫不堪。

He spread the map flat out on the floor.

他把地图平铺在地上。

详细释义：

1. 竭尽全力

They had to work flat out to get the job finished.

他们必须全力以赴把工作完成。

2. 直截了当地

Tell me flat out what you think.

坦率地告诉我你的想法。

3. 疲惫的

I was flat out after my work.

工作后, 我觉得疲惫不堪。