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1·On the other hand, the transparent linking of wired and wireless networks is an unsolved problem.

另一方面，有线和无线网络间的透明连接是一个尚未解决的问题。

2·It is one of the great unsolved mysteries of this century.

这是本世纪尚未解开的大奥秘之一。《牛津词典》

3·Will the Internet help explain these unsolved mysteries?

互联网能帮助解释这些未解之谜吗？

4·Canada, and Europe have received a great deal of media and even research attention over unusual phenomena and unsolved mysteries.

加拿大和欧洲因为一些不寻常的现象和未解的谜团而受到了大量媒体甚至研究的关注。

5·Over the past several decades, the U.S., Canada, and Europe have received a great deal of media and even research attention over unusual phenomena and unsolved mysteries.

在过去的几十年里，美国、加拿大和欧洲收到大量关于不寻常现象和未解之谜的媒体关注，甚至还有研究者的关注。

6·The invention of the vertical file remains an unsolved mystery.

立式文档的发明文件仍然是一个未解之谜。

7·Unsolved for most people anyway.

至少对于大部分人来说，这是没有结案的。

8·These are pressing, unsolved questions.

这些都是棘手的尚待解决的难题。

9·By mysteries unsolved, past understanding.

经过无法解答和领会的谜团。

10·The big unsolved problem is scanner technology.

还没有解决的最大问题则是扫描技术。