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1·The document was excerpted from an unidentified FBI file.

此文件摘自来源不明的联邦调查局档案。《牛津词典》

2·Catherine found a blank, unidentified envelope.

凯瑟琳找到了一封来源不明的空白信封。

3·A singular glow came from the unidentified flying object.

从不明飞行物上发出奇特的光。《新英汉大辞典》

4·This is an unidentified place, probably on the east coast of Africa or the west coast or India.

这是一个未经确认的地方，可能在非洲东海岸或西海岸，或者在印度。

5·Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake.

地方探员托德·帕克说，这种方法帮他获得了一名身份不明的妇女的信息，该妇女的骸骨在大盐湖附近被发现。

6·More than a thousand people claim to have seen the bulbous back of an unidentified creature briefly break the glassy surface of Loch Ness, then disappear.

一千余人声称见到了一个未经确认的动物，短暂地穿出尼斯湖光亮透明的水面，然后逐渐消失。

7·He was shot this morning by unidentified intruders at his house.

他今天早晨在家里遭到身份不明的闯入者枪击。《柯林斯英汉双解大词典》

8·His claims were based on the comments of anonymous and unidentified sources.

他的主张基于匿名及未知出处的资料的评论。《柯林斯英汉双解大词典》

9·I pick rice and sweetcorn out from unidentified seafood as my boyfriend eyes his bowl uneasily.

我从不知名的海鲜中挑出米饭和甜玉米粒来吃，而我男友不知所措地看着他的饭碗。

10·Postmortem analysis showed the presence of an as yet unidentified virus, as well as evidence of a know bacterial toxin.

尸检分析显示出存在一种未知的病毒，以及一种已知的有毒细菌的证据。