adj.即兴的；不用讲稿的；临时的；权宜的
He made an extemporaneous speech. 他作了即席演说。
An accomplished extemporaneous speaker. 一位高明的即席演讲者
An extemporaneous policy decision. 一个权宜的政策决定
She made an extemporaneous speech on the ceremony. 她在典礼上做了一次即兴演讲。
In an extemporaneous or informal manner. 即席地，非正式地
Nixon carried away with it all, delivered his extemporaneous toast. 尼克松对一切都很满意，颇有些情不自禁地发表了他的即席祝酒词。
adj.临时作成的；即席的
