at one sweep

例句：

1. 1. The project wascompleted at one sweep.
   这个项目一气呵成地完成了。
2. 2. He finished the painting in one sweep.
   他一气呵成地完成了这幅画。
3. 3. They achieved their goal in one sweep.
   他们一气呵成地实现了他们的目标。