the fact of taking action straight away 迅速性: 立即采取行動He responded to our email questions with great promptness. 他非常迅速地回複了我們的電子郵件問題。
the quality or habit of arriving somewhere at the right time synonym punctuality及時性: 在正確的時間到達某個地方的質量或習慣There was one rule her father insisted on: promptness. 她父親堅持一條規則:準時。