【地道口语】think on one's feet 这个俚语的意思是：脑子反应快。例如：To be a successful talk show host, you have to be able to think on your feet. 要做个成功的脱口秀主持，反应一定要快。I'm not good at thinking on my feet. 我这人反应不是特别快。The job requires the ability to think on your feet well. 这工作要反应快。 ​​​​