罕见

BACKGROUND: Several cardiac ion channel genes have been implicated in monogenic traits with a high risk of sudden cardiac death. Mutations or rare variants in these genes have been proposed as potential contributors to more common forms of SCD, but this hypothesis has not been assessed systematically.

背景：数种心肌离子通道基因和高危心源性猝死的单基因特性有关，这些基因的罕见突变被认为是SCD更常见的潜在促进因素，但是这一假说没有被系统的评价过。

A rare exception is the KE family, a large three-generation pedigree in which approximately half of the members are affected with a severe speech and language disorder which appears to be transmitted as an autosomal dominant monogenic trait.

一个罕见的例外是KE家族，一个庞大的三个世代的谱系，其中将近半数的成员受到严重的言说和语言失调的影响，显示受到以此种遗传作为常染色体显性单的基因起源特徵。

In a whole, the genetic diversity of clonal plants is much higher than that had been expected before. Although the genetic diversity is lower than their sexual congener, widely genetic monomorphism has been rarely found.

总体而言，克隆植物拥有比早期推测大得多的遗传变异，虽然克隆种与其近缘有性繁殖种相比，遗传多样性较低，但广泛的遗传单态性却很罕见。

Some of the rarest birds built in the old mossy trees.

几只非常罕见的鸟雀在长满苔藓的老树上筑巢。

Motet, Chanson, Anthem, unusual instruments, word painting

逐渐形成并兴盛至16世纪末的多声或单声，附有伴奏的歌曲）、赞美诗、罕见的乐器以及作品里所用词语的特色。

But Mubarak's case appears to be a rarity, said Los Angeles attorney Paul Hoffman.

但Mubarak 的案件是急为罕见的，洛杉矶律师保罗Hoffman说。

Multicentric Castleman's disease is a rare and usually uncurable disease characterized by the disorder of polyclonal lymphoproliferation.

多中心Castleman病是一种罕见的通常不可治愈的淋巴结增生紊乱性疾病。

This problem is complex, multifaceted, cultural, and not uncommon within the software development community.

这个问题是复杂的，多方面的，文化，而不是在软件开发社区罕见。

It's not often that an incoming college freshman is already starting his own multimillion dollar business.

大学新生已经有创办了价值数百万美元的企业，这可太罕见了。

That I ought to consider I had been fed even by Miracle, even as great as that of feeding Elijah by Ravens; nay, by a long Series of Miracles, and that I could hardly have nam'd a Place in the unhabitable Part of the World where I could have been cast more to my Advantage: A Place, where as I had no Society, which was my Affliction on one Hand, so I found no ravenous Beast, no furious Wolves or Tygers to threaten my Life, no venomous Creatures or poisonous, which I might feed On to my Hurt, no Savages to murther and devour me.

我感到，我是被奇迹养活着，这种奇迹是罕见的，就像以利亚被乌鸦养活一样。应该说，正是由于发生了一系列的奇迹，我至今还能活着。在世界上所有荒无人烟的地区，我感到没有一个地方会比我现在流落的荒岛更好了。虽说这儿远离人世，形单影只，使我非常苦恼，但这儿没有吃人的野兽，没有凶猛的虎狼害我性命，没有毒人的动物和植物，吃下去会把我毒死，更没有野人会把我杀了吃掉。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！