Forest decline is still poorly understood but leads to the loss of a high proportion of a tree's needles or leaves.
人们对森林衰退还知之甚少，但森林衰退会导致树叶和针叶大面积脱落。
Smell has been the most poorly understood of our senses, and only recently has neuroscience, led by Yale University's Gordon Shepherd, begun to shed light on its workings.
嗅觉一直是我们的感官中受到了解最少的，直到最近，耶鲁大学的戈登·谢泼德领导的神经科学研究才开始揭示它是如何发挥作用的。
New diseases are, by definition, poorly understood.
新的疾病，从它的定义就可以看出，我们对它知之甚少。
A new disease is, by definition, poorly understood as it emerges.
通过定义就可看出，当一个新的疾病刚开始出现时，人们对它的认识并不透彻。
This point is I think still poorly understood.
这正是我觉得大家还没有好好理解的地方。
He said: "The mechanisms involved are still poorly understood."
我们对其所涉及的机制仍然知之甚少。
Rubbish may be universal, but it is little studied and poorly understood.
或许垃圾到处都有，但关于垃圾的研究屈指可数，人们对它的了解也少得可怜。
Apply your best resources to the difficult or poorly understood components.
将最佳资源应用于难于理解或对其理解不透彻的组件。
Last year a new bankruptcy law came into effect, but it is incomplete and poorly understood.
去年一项新的破产法生效，但却不完整而且也难以理解。
Crying linked to emotions—perhaps a uniquely human behavior—is poorly understood by scientists.
哭泣和情感相连——可能是人类独有的行为——很难被科学家理解。
Yet, the values of these resources are poorly understood and their management has been neglected.
然而，人们对这类资源的价值认识不足，忽视了对它们的管理。
The effects of mixtures of trace elements are poorly understood and could cause further health concerns.
至于微量元素混合物产生的影响，人们对此知之甚少，但此类混合物会引发更深远的健康问题。
In many under-resourced countries, the magnitude and scope of the influenza burden are poorly understood.
在许多资源不足的国家，人们对流感负担的严重程度和范围了解不足。
Planets are known to migrate toward or away from their stars over time, but the process is poorly understood.
人们知道行星会随着时间的推移向着或者背离其恒星迁移，但人们对其过程知之甚少。
In the past, humanity has tended to ignore the brain because it was poorly understood and underappreciated.
在过去，由于对大脑的了解和重视有限，人类经常忽视大脑。
However, the molecular mechanisms by which alcohol alters neuronal activity in the brain are poorly understood.
然而，我们对酒精改变大脑神经元活动的分子机制还知之甚少。
The census also supplies detailed data about poorly understood groups of people, such as some ethnic minorities.
人口普查也可为我们提供那些外界知之甚少的群体的详细数据，如一些少数族群。
There is a reason for this: the brain is a complex organ and the causes of its disorders remain poorly understood.
其原因在于：大脑是个复杂的器官，对其功能失调的原因仍然所知甚少。
These metastatic cells tend to move more than their non-metastatic variants but this movement is poorly understood.
这些转移性癌细胞比那些非转移性的细胞更加易于迁移，但我们对于迁移如何进行还所知甚少。
It's a poorly understood phenomenon, but according to the experts who've studied them, these people aren't just messing with us.
这是一个难以理解的现象，研究此现象的专家说，这些人确实没有故意耍我们。
It is the second study published this week to find new genetic causes of autism, a complex and poorly understood set of disorders.
本周发表的第二项研究发现了自闭症(一种复杂且缺乏了解的疾病)的新遗传因素。
Although several genes involved in this process have been identified recently, the molecular mechanism is still poorly understood.
尽管参与这一过程的一些基因已经被鉴定出来，但是分子机理还不是很明了。
Using processes only poorly understood, the body's ability to heal itself is far more amazing than anything modern medicine could create.
我们的身体能通过一系列我们至今知之甚少的过程来自我疗救，其治愈能力远比现代医学所能创造的一切更加令人惊叹。
Indeed, Naaman believes that studies of spin in biomolecules could shed light on poorly understood low-energy biochemical processes that occur in nature.
事实上，Naaman认为研究生物分子的自旋有助于揭示目前知之甚少的发生在自然界的低能生化过程。
However, if done improperly or without careful consideration, you can create an insecure system, or at least one with poorly understood trust relationships.
然而，如果处理不适当或者没有认真考虑，则可能创建一个不安全的系统，或者至少是对信任关系理解不足的系统。
However, if done improperly or without careful consideration, you can create an insecure system, or at least one with poorly understood trust relationships.
然而，如果处理不适当或者没有认真考虑，则可能创建一个不安全的系统，或者至少是对信任关系理解不足的系统。
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