This type of speech is often called an impromptu speech.

“现场站立思考”是指能够快速组织自己的观点，不要提前准备便能针对某个主题发表演讲，这种类型的演讲常常被称为即席演讲。

youdao

You can hear this type of speech every year during the Academy Awards.

每年的奥斯卡颁奖典礼上你都能听到这类演讲。

youdao

You can hear this type of speech every year during the Academy Awards.

每年的奥斯卡颁奖典礼上你都能听到这类演讲。

youdao