The new onboarding program proved efficacious, cutting training time for new hires by half.

新的到職訓練計畫證實非常有效，讓新進員工的培訓時間減少一半。

Our analysts found that the cost-reduction plan was more efficacious than expected this quarter.

我們的分析師發現，本季的成本削減計畫比預期更有成效。

Customer service reps say a sincere apology is the most efficacious way to calm upset callers.

客服人員表示，真誠道歉是安撫不滿來電者最有效的方法。