您要查找的是不是：
- a poem by an unknown author; corporations responsible to nameless owners; an unnamed donor. 一首不知道作者的诗；企业为不知道名字的所有者负责；不知姓名的捐赠者。
- It was written by an unknown author. 这书是一位无名作者写的。
- This prizewinning essay was written by an unknown author. 这篇获奖文章是由一位名不见经传的作家写的。
- We bought a drawing by an unknown artist. 我们买了一幅某个不出名的画家所作的画。
- He wrote an essay on a poem by Shelley. 他写了篇文章论述雪莱的一首诗。
- She cited (a verse from) (a poem by) Keats. 她引述济慈（诗中的）词句.
- She cited a verse from a poem by Keats. 她引述济慈诗中的词句。
- The tune was written by an unknown young man. 这首曲子是一个不知名的年轻人作的。
- The famous tennis player was beat by an unknown young woman. 著名的网球运动员败在一个不知名的年轻女运动员手下。
- This certificate was issued by an unknown security agency. 该证书是由一个未知的安全部门颁发。
- When I was at school,I had to learn a poem by heart every day. 我让学的时候，每天要背一首诗。
- When I was at school, I had to learn a poem by heart every day. 我让学的时候，每天要背一首诗。
- He can fling off a poem in half an hour. 他可以在半小时之内草就一首诗。
- But when the teacher reads a poem by Sidney Lanier, the boy's heart is stirred. 但是，当老师诵读拉尼尔（SidneyLanier）的这首诗时，这个男孩的心深深地被打动了。
- Above the mantelpiece hung a charming 18th century conversation piece by an unknown artist. 壁炉上方挂着一幅迷人的、不知由哪个艺术家所作的18世纪人物风俗画。
- Moreover,a poem was inscribed by an emperor of Song Dynasty,called Song Ningzong. 然此图笔法、敷色之柔雅沉厚，意趣之清美艳丽，极富女性气质。
- The base is under attack by an unknown force and your mission is to acquire intelligence and neutralize the threat. 基地正遭受一支不明势力的袭击而你的任务就是取得情报并除掉它们。
- The paper begins with a poem by Ezra Pound, American poet and literary theorist, and draws forth some new ideas. 文章开篇伊始,即以美国诗人兼文学理论家艾兹拉·庞德(Ezra Pound)的诗为契子,引出后文的诸多理念。
- A fictitious name assumed by an author; a pen name. 假名一个作者采用的假名; 笔名
