ac是动词前缀，中文意思是“交流”，例accelerate，acstep，accustom，accomplish 等

"Never in my wildest dreams did I think I'd ever accomplish this，" said Toni.“即便在我异想天开的时候，也从来没有想到过我能实现它，”托尼说。

How did you accomplish the goals both at once?