Definition
To make quick decisions or give prompt answers without prior preparation or planning.
臨場應變
During the impromptu speech, he had to think on his feet and quickly organize his thoughts.
在即席演講中，他必須隨機應變，迅速組織思路。
She is always able to think on her feet when asked unexpected questions.
當被問到意想不到的問題時，她總能迅速應對。
During the negotiation, I had to think on my feet to respond to the other party's changing tactics.
在談判過程中，我必須隨機應變，以應對對方不斷變化的策略。