伊朗对外部世界而言依然是个谜。
他们到底出了什么事，到现在仍可以说是个谜。
这些奇特的玻璃球体的起源仍然是个谜。
The origin of these peculiar glassy spheres remains an enigma.
接下来发生的事情的原因对于动物学家和自然学家来说仍然是个谜。
The reason for what follows remains a mystery for zoologists and naturalists.
尽管这是当前研究的主题，但如何组合和感知整个图像仍然是一个谜。
How the whole image is then assembled and perceived is still a mystery although it is the subject of current research.
你将如何做到这一点则是另一个谜，因为在实验过程中你们两人没有交流的机会。
How you'll do this is another mystery, as there is going to be no communication between the two of you during the experiment.
冥王星不属于这两类，因为它离地球太远，体积又小，使得它的真正性质成为一个谜。
Pluto is not included in either category, because its great distance from Earth and its small size make this planet's true nature a mystery.
大自然确实像一个谜，其中一些领域是科学技术无法触及的，至少在可预见的未来是这样。
Nature is indeed like a riddle, some areas of which are beyond the reach of science and technology, at least in the foreseeable future.
我们邀请解完谜的读者交出谜底。
We invited readers who completed the puzzle to send in their solutions.
在公开场合他一直是个谜。
他们通过设谜为他们的谈话和讨论增加乐趣。
They spiced their conversations and discussions with intrigue.
他的死因是个谜。
失落的印加文明，被认为是一个谜。
这种化学物质究竟是如何发挥作用的仍然是一个谜。
How exactly the chemical plays a role still remains a mystery.
灯谜通常由三部分组成，即谜面、谜目和谜底。
Generally, a lantern riddle consists of three parts, namely the riddle, the hint and the answer.
现在我希望粉丝们把它看作一个谜题，因为它的确该是个谜。
Right now I hope fans see it as a big question mark, because it should be.
这可是困扰了医生们几十年的一个谜。
未来会怎么样仍然是一个谜。
月球山谷的形成仍是一个谜。
@符号的确切起源仍然是谜。
从进化的角度看，公平的存在是一个谜。
FOR the evolutionarily minded, the existence of fairness is a puzzle.
但是，偏手性始终是个谜。
这些夭折恒星(指棕矮星)的起源是个谜。
睡眠的功能以及梦在睡眠中的作用仍是一个谜。
It's still a mystery what the function of sleep is and the roles dreams play in sleep.
那个谜尚待解开。
漂浮的冰块是第一个谜。
用来酿造普通金色啤酒的混合酵母的起源一直是个谜。
The origin of the the hybrid yeast used for making the popular golden brew has been a persistent mystery.
抽象画家克利福特·史蒂尔是美国艺术中一个难解的谜。
The abstract painter Clyfford Still is a craggy enigma of American art.
最终各种方法的组合将为解开这个谜提供数据，专家说。
Ultimately it will take data from a combination of methods to help unravel the mystery, the experts said.
直到15年前这些怪浪仍被认为是谜一般的存在。
As recently as 15 years ago these waves were thought to be a myth.
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