Some uses of color in nature remain unknown, but one thing is for sure, color not only makes our planet beautiful but it is also necessary for our planet to live on.
颜色在自然界的一些用途仍然未知，但有一件事是肯定的，颜色不仅使我们的星球变得美丽，也是我们的星球得以生存的必要条件。
At this point, the causes of ASDs remain unknown, and more research needs to be done.
目前为止，ASD的发病原因尚不知晓，仍待做进一步研究。
The names of most of the artists remain unknown but their work will be seen by tens of thousands.
大多数创作这些作品的艺术家的名字无从知晓，但他们的作品将会受到成千上万人的观赏。
Cost is no obstacle for customers like Missy's mysterious owner, who wishes to remain unknown to protect his privacy.
对于像密斯的神秘主人这样的消费者来说，高额的花销并不是什么难题，他只是希望匿名以保护自己的隐私。
Although the cause would remain unknown, a likely explanation is that something in the laws of gravity needs radicalrevision.
尽管结果现在还无人知晓，不过很有可能引力的一系列定律需要得到根本的修正。
The mechanisms underlying this disorder however remain unknown.
但是病变的机制仍不明确。
Doctors warn the long-term risks of the technique remain unknown and it cannot cure asthma.
医生警告说这种技术的长期使用风险还不清楚，其并不能治愈哮喘。
I am not at liberty to mention his name; he expressly stipulated that he was to remain unknown.
我不能说他的名字；他很明确的要求我们不要透露他的姓名。
However, the mechanisms contributing to the regulation of this cerebrovascular response remain unknown.
但其中的脑血管调节机制尚不清楚。
First, mass media keep us well informed of the happenings of the world which would otherwise remain unknown.
首先，通过大众传媒，我们对世界风云变幻了如指掌，否则我们就会一无所知。
Global methylation dynamics in seeds of cereal crops that provide the bulk of human nutrition remain unknown.
禾谷类作物提供了人类决大部分的营养，但是谷类植物种子甲基化的全局动态变化还不是很清楚。
Systemic lupus erythematosus (SLE) is a multifactorial disease and its pathogenesis and precise mechanism remain unknown.
系统性红斑狼疮(SLE)是一种多因素疾病，其病因和发病机制尚未明确。
I suspect the realities of living on a warming planet with a spiraling population and dwindling resources will remain unknown for some time yet.
我觉得人类生活在一个日益变暖的星球，人口螺旋式增长而资源不断减少，这一现实或许还需时日才能为人所知。
However, the relatively modest number of anorexia cases explained by these results we found suggests that many other candidate genes remain unknown.
然而，我们得到的这些结果所解释的厌食症病例数量相对较少，这提示很多其他候选基因仍未被发现。
Summary of Background Data. The consequences of the discontinuation of school scoliosis screening programs on the referral patterns of AIS patients remain unknown.
对于AIS患者的治疗安排模式来说，学校脊柱侧弯筛查程序中止的后果尚未得知。
The genes that contribute to fearfulness at different ages remain unknown, as evidence for the shift entirely lies in the strength of the links between fear levels in identical twins across time.
引起不同年龄阶段（的年轻人）产生恐惧的基因依然不清楚，因为这些证据完全依赖于同卵双胞胎之间的恐惧程度随时间变化的联系强度。
Mass media keep us well informed of the happenings of the world which would otherwise remain unknown.
大众传媒使我们充分了解世界上发生的事情，否则我们对这些事情一无所知。
Mass media keep us well informed of the happenings of the world which would otherwise remain unknown.
大众传媒使我们充分了解世界上发生的事情，否则我们对这些事情一无所知。
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