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The woman was "severely disfigured" by a dog bite in May that made it difficult for her to speak and chew, according to a joint statement from the hospital in Amiens and another in the southern city of Lyon where Dubernard works.

中国科学家也曾进行过头皮和耳朵的移植手术，但专家对此表示，嘴部及鼻子才是面部器官中最难被移植的部分。2000年，杜伯纳德医生曾完成了世界首例双前臂移植手术。

Wang Zhichun knew that these details were difficult to comprehend, and said,"Not exactly. But they're like bacteria. Under the right conditions, amitosis proceeds at an amazing speed."

王之淳也知道这些细节不容易懂，便说：「也不尽然，不过它们就像细菌一样，只要条件适合，分裂得快极了！

David Llewelyn: This is a very important decision, because if it gone the opposite way ,it would meant that it would be very difficult for well-known designers Gorge Ammine 、 Channel and all these other very famous brands to continue going after the designer died or left the company.

如果不是这么判，而是支持伊丽莎白的说法的话，那那些著名的时装公司像香奈尔啊等等等等，等他们的主要设计师去世之后这个公司继续用以这个设计师作为商标名称的话，那会统统被认为是有欺骗性的。

With a strong affinity between water and ammonia, the purification of ammonia is rather difficult.

由於氨与水具有强亲合性，为了获取高浓度的氨气，都是藉由体积庞大的蒸馏塔，将氨气从氨水溶液中精馏出来。

Of ammoniac black silk ribbon come out, solved this one difficult problem.

氨纶的问世，解决了这一难题。

Inorganic agents such as sodium bicarbonate, ammonium carbonate and sodium boron hydride generate gas slowly and the gas produced by these agents is generally difficult to control.

无机物质如碳酸氢钠，碳铵和钠硼氢化物气体产生缓慢，所产生的沼气，这些代理商通常很难控制。

However, it is difficult to strip Fe from the loaded extractant, this will cause trouble to the U stripping with 50 g/L ammonium carbonate or sodium carbonate.

另外，由于负载的铁不能完全反萃，会给后续的碳酸铵反萃U带来麻烦。

Is very difficult for us to assess accurately the number of amniotic fluid.

我们实在很难正确地去评估羊水的多少。

"It's truly a cutting-edge approach to very difficult chemistry," said Roman Salij, development manager at Amoco Chemicals.

"这是一个真正的尖端化学方法很难说："罗马salij、阿莫科化工开发经理。

In language learning process, it is one of the most difficult and important skills among other English learning skills.

在语言的学习过程中，听力扮演着很复杂和重要的角色。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。