Snow in Egypt is an almost unknown phenomenon.

在埃及，下雪几乎是无人知晓的现象。

youdao

In most of Asia, marriage is widespread and illegitimacy almost unknown.

亚洲大部分，结婚是广为人知的，但私生子的情况却是寥寥无几的。

youdao

Or what of "roue", a "French" word common enough in English but now almost unknown in French?

另外，在英语中普遍使用的一个法语单词“roue”但是现在在法语中已经几乎不为人知了，那它是否也应该计入呢？

youdao

Then on April thirtieth, two thousand seven,a huge fire of unknown cause almost completely destroyed South Hall.

VOA: special.2009.08.21

For its first 15 years research in Motion was a Canadian pager outfit almost unknown south of the border.

FORBES: BlackBerry Jam

First, long-sightedness (presbyopia) is almost unknown at 35, yet is universal by 50.

BBC: Viewpoint: Just what is middle age?

President Yeltsin had sacked his long-time Prime Minister, Viktor Chernomyrdin, in March, replacing him with the almost unknown Sergei Kiriyenko.

BBC: The year the bubble burst