Truly random Numbers are a very valuable and rare resource.

真实随机数是一种很有价值而且稀有资源。

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Dante Bookstore, decorated with a unique English style, is very famous in London. It is also known for its rare and extremely valuable collection of traveling books.

丹特书店是伦敦一家非常有名的书店，其装潢潢极具英国特色，更以丰富的极具收藏价值的旅行图书而闻名于世。

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The living spaces for some valuable and rare animals and plants are being disturbed by the tourists and their number decreases very quickly. some even are deracinating.

森林动植物生存空间受到严重侵扰，一些珍贵的、稀少的森林动植物数量不断减少，甚至面临灭绝的边缘。

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"The opportunity to learn from such a hugely successful and experienced film-maker is very rare indeed, and I have no doubt that it will be a valuable one, " she said.

BBC: Mark Andrews

Soliris is very valuable in treating two conditions: a rare form of anemia and an even rarer kidney ailment known as atypical hemolytic uremic syndrome.

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