As you can see, in addition to the introduction, the cover advertises also a portrait of the author.

如你所见，除了引言外，封面也展现了作者的肖像。

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[Brief introduction to the speaker]: John F. Kennedy (1917-1963) John F. Kennedy was a war hero, a Pulitzer Prize [1]-winning author, a U. S. Senator for most of the 1950s.

约翰·肯尼迪是一位战争英雄，普利策奖获得者，整个五十年代，都是美国参议员。

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Feng Boyi: Actually, I think the words functioning like a tag, just like a tag of introduction for a work, bearing the title, size, birth of the author, or maybe also the comments of critics.

冯博一：实际上，我觉得这个文字相当于标签在旁边，比如说有的作品标签有自己的阐述，作品的题目、尺寸、创作者的年代，也有的加上评论家的意见。

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And as you can see, in addition to the introduction, the cover advertises also a portrait of the author.

你们可以看到，除了引言，封面的宣传也是作者的画像。

耶鲁公开课 - 现代诗歌课程节选

He has been President of the Scottish Medico-Legal Society since 1996 and is the author of Medical Negligence: An Introduction (1983).

BBC: The men in robes

Forewarned, in the introduction, by the author's declaration of intent, the reader expects a sympathetic biography.

ECONOMIST: Financial history

"Those who have called themselves fascists have had many different views, and they have often evolved over time, " said Passmore, Reader in History at Cardiff University in Wales and the author of "Fascism: a very short introduction".

CNN: 'Fascist' Di Canio polarizes opinion