试题题干
Translate the following sentence into Chinese.
The most polished, smoothly delivered, spontaneous-sounding talks are the result of many hours of work.
参考答案
试题解析
考点：polished 优雅的；smoothly delivered 流畅地表达；spontaneous-sounding 自然发音。
句子结构：句子主干为talks are the result of many hours of work，talks之前的内容修饰talks。