He has written a speculative biography of Christopher Marlowe.是什么意思？

He has written a speculative biography of Christopher Marlowe.

他写了一篇关于克里斯托弗·马洛的推测性传记。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

written

adj. 书面的，写成文字的，明显受到…影响，（感情）全挂在脸上；v. 写( write的过去分词)，写信；

例句
...a written declaration by someone, authorizing another person to act as his agent.
一份某人授权他人为其代理人的书面申明

speculative

adj. 投机的，思考的，推理的，揣摩的；

例句
Everyone is hoping that these hi-tech companies will turn out to be the Microsofts of the future. At the moment they look more like the focus of a speculative bubble...
每个人都希望这些高科技公司能成为未来的微软。目前它们看上去更像是投机泡沫的中心。

biography

n. 传记，档案，传记体文学，个人简介；

例句
...a volume of biography and criticism.
一册传记和评论文章

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

Christopher

n. 克里斯托弗（男子名）；

例句
...the former home of Sir Christopher Wren.
克里斯托弗·雷恩爵士的旧居

Marlowe

[人名] [英格兰人姓氏] 马洛 Marlow的变体；

例句
Many alternative authors have been suggested most prominently , Christopher Marlowe and Francis Bacon.
于是,便提出了许多其他作家——提到最多的是克里斯托弗-玛洛及弗朗西斯-培根.