这是极为罕见的笑容，其中含有永久的善意的表情。
It was one of those rare smiles with a quality of eternal reassurance in it.
中美之间的协商到达了正式盟友之间都极为罕见的水平。
Consultation between China and the United States reached a level of intensity rare even among formal allies.
在典型的全部教育课程中，批判性思维课是极为罕见的。
Critical thinking classes are rarely included in typical educational curriculum.
韩国大型企业在年中时期更换主管是极为罕见的现象。
Executive changes in the middle of the year are extremely rare at top South Korean companies.
17世纪中期以前，画家给自己的作品正式标题是极为罕见的。
Until the middle of the 17th century, it was extremely uncommon for an artist to give his work a formal title.
由于圈养的大熊猫繁殖能力不强，所以大熊猫幼仔是极为罕见的。
Giant panda cubs are rare, as it is hard to get pandas to breed in captivity.
神经内囊肿的诊断是极为罕见的，本文所报导的很可能是第一例。
Diagnosis of a cyst in a nerve body is very rare, and the one reported here might be the first such case.
当一个国家的存款利率达到一个很高的水平后再迅速下跌是极为罕见的。
Rarely if ever does a country's savings rate collapse quickly after reaching such a high level.
这种荟萃东西方艺术为一体的艺术现象，在中外艺术史中都是极为罕见的。
It is seldom seen in the history of the world that art progress for the Loulan art to mix the east and west art together.
下图拍摄于上周的一个黎明，画面中的雪山和星空是当地极为罕见的景色。
Explanation: Recorded last week, this dawn portrait of snowy mountain and starry sky captures a very rare scenario.
结论∶文献回顾证实脑神经成血管细胞瘤是极为罕见的病变，散发或与VHL病并发。
CONCLUSIONS: Review of the literature confirms that cranial nerve hemangioblastomas are very rare lesions that occur sporadically or in association with VHL disease.
这是极为罕见的笑容，其中含有永久的善意的表情，这是你一辈子也不过遇见四五次的。
It wasone of those rare smiles with a quality of eternalreassurance in it, that you may come across fouror five times in life.
上周六，皇家节日音乐厅的观众欣赏了一场在伦敦极为罕见的音乐盛宴：俄国乐手演奏的俄罗斯音乐。
The audience at the Royal Festival Hall last Saturday enjoyed a musical experience that is rather rare in London: Russian music performed by Russian players.
最近，一个长达6年之久的内核错误被修复，这样的例子在Linux世界中，可算是极为罕见的事例。
Even the six-year-old kernel bug that was recently fixed, for instance — an extremely rare instance in the Linux world — had never been exploited.
该组织目前正以大约每周一例的速度接收新的病例，其中许多疾病发生在如此年轻的人身上是极为罕见的。
The group is receiving new cases at a rate of about one a week, many of which are extremely rare at such young ages.
尽管宽吻海豚通常是灰色的，这只极为罕见的宽吻海豚却因为是白化变种而没有色彩——除了兴奋时会变粉。
Although bottlenose dolphins (Tursiops) are usually grey, this extremely rare creature is an albino and has no colouration - apart from a tendency to turn pink when feeling flushed.
在慢性肝病病人中，因自发或手术所致门体静脉分流而可引起一种称为门体静脉分流性脊髓病的极为罕见的并发症。
In patients with chronic liver disease, spontaneous or surgical portal systemic shunting can cause a rare complication called portal systemic myelopathy.
在南秦岭一带的下寒武统硅岩建造中，既存在一大批重晶石矿床，又发育大量毒重石矿床，构成世界上极为罕见的大型钡成矿带。
More than 70 witherite and barite deposits occurred in the southern Qinling Mountains, and constituted a unique large-scale Ba metallogenic belt in the world.
新药物在临床试验期间接受有限的安全性评估后，即正式注册并投放市场；在大规模普遍使用过程中，只能出现极为罕见的意外的副作用个案。
New medicines are registered and enter the market with limited safety evaluation during clinical trials; rare unexpected side effects can only be detected during large-scale use.
出版咨询公司IdealLogical的首席执行官迈克·斯塔金称“这是一个极为罕见的迹象，它表明出版业终于找到了前进的方向”。
"This is a rare sign that the light's finally gone on in publishing," says Mike Shatzkin of Idea Logical, a consultancy.
今天晚上地球的天然卫星月球在其轨道上离地球仅有356575公里远，这使得月球处于离地球最近的位置上，而这也是极为罕见的有关月球的事件。
Tonight's rare lunar occurrence, when Earth's natural satellite is only a mere 356, 575 kilometers out in orbit, brings the moon to its closest position to Earth.
所有这些都表明，在葫芦里发现的DNA 图谱在现代欧亚混血儿中极为罕见，这表明它可能来自一个王室血统。
These all revealed that the DNA profile found inside the gourd is extremely rare in modern Eurasians, suggesting that it may derive from a royal bloodline.
她的这种怪病叫做水源性荨麻疹。这种疾病极为罕见，全世界只记录过几个案例。
She suffers from an extremely rare skin disorder called Aquagenic Urticaria - so unusual that only a handful of cases are documented worldwide.
在安哥拉的最近一次暴发之前，儿科病例被认为极为罕见。
Prior to the present outbreak in Angola, paediatric cases were considered extremely rare.
在安哥拉的最近一次暴发之前，儿科病例被认为极为罕见。
Prior to the present outbreak in Angola, paediatric cases were considered extremely rare.
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