before one could say knife

• 一下子

before one could say knife的用法和样例：

例句

1. He beat his opponent at one bout.
   他一下子就打败了对手。
2. All our problems were solved in one swoop.
   我们所有的问题一下子全都解决了。
3. Affinity casts three spells before blinking, and the Goblin decks often do likewise.
   共鸣连眨眼工夫都用不上，一回合就能出来三个咒语，精灵也类似。
4. I could hardly wait to pay him a visit.
   我真想马上去拜访他。
5. One roasted corn on the cob, coming right up for the shopping lady.
   给这位小姐的烤玉米马上来。

词汇搭配

• before one could say Jack knife 马上