at one whack

例句：

1. 1.The team was able to defeat the opponent at one whack.
   该队一棍子就击败了对手。
2. 2. He achieved his goal at one whack.
   他一举就实现了目标。
3. 3.The company was able to secure the deal at one whack.
   该公司一棍子就敲定了交易。