ad-lib

Her ad-lib response to the difficult question impressed the entire panel of judges.

(Chinese) 她对那个难题的即兴回答给整个评审团留下了深刻印象。

The show featured several ad-lib segments where actors interacted directly with the crowd.

(Chinese) 演出中有几个即兴环节，演员们直接与观众进行互动。