adj.即席的，当场的；无准备的；临时的；权宜之计的

She delivered an extemporaneous speech on the importance of renewable energy, captivating the audience with her spontaneous insights.
她即兴发表了一篇关于可再生能源重要性的演讲，以自发的见解吸引了听众。
The debater's ability to think on his feet and provide extemporaneous responses impressed the judges.
辩论者临场应变的能力和即兴回答问题的能力给评委留下了深刻印象。
He gave an extemporaneous lecture, diving into complex theories without any prepared notes.
他进行了即兴讲座，没有准备笔记就深入探讨了复杂的理论。
Her extemporaneous acting in the improvisational theater showcase was truly remarkable.
她在即兴剧场表演中的即兴演技真是令人赞叹。
The musician stunned the crowd with an impromptu, extemporaneous performance that left them spellbound.
这位音乐家以一场即兴的、自发的表演震撼了观众，让他们如痴如醉。
In the job interview, he answered each question extemporaneously, demonstrating his confidence and quick thinking.
在求职面试中，他即兴回答了每一个问题，显示出他的自信和快速思维。
The journalist conducted an extemporaneous interview, engaging the celebrity in a spontaneous conversation.
记者进行了一次即兴采访，与名人进行了一场自发的对话。
The public speaker's extemporaneous style made the lecture feel more authentic and relatable.
演讲者的即兴风格使讲座显得更真实、更贴近人心。
The comedian's extemporaneous jokes, tailored to the audience, had everyone laughing uncontrollably.
喜剧演员根据观众即兴创作的笑话让每个人都笑得前仰后合。
The politician's extemporaneous town hall meeting responses showcased her genuine concern for the community's issues.
政客在市政厅会议上即兴的回答展示了她对社区问题的真实关心。