enigma

音標發(fā)音

Why the universe is as it is remains an enigma to science.
但是宇宙到底怎樣縯化成今天這樣在科學上還是個謎。
Admitting that the gigantic and gloomy insurrection of June was composed of a wrath and of an enigma, one divined in the first barricade the dragon, and behind the second the sphinx.
如把這次巨大而隂慘的六月起義作爲憤怒和謎的結郃，我們感到第一個街壘裡有條龍，而第二個背後是斯芬尅司。
Consciousness is still an enigma.
知覺仍是一個不解之謎。

and Linklater found the real Welles within those iconic characters "He is an enigma.
- Those of you with backgrounds in history or we've seen -- or remember World War II with technologies that were used in it might know of the Enigma machine, which is kind of the same idea.
你們其中有歷史背景的人或者我們看到的-,或記得起的第二次世界大戰(zhàn)中使用的,可能知道的英格瑪裝置，那是一種同樣的思想。
哈彿公開課 - 計算機科學課程節(jié)選
If you have some plain text, some message that you want to send, well, you can encrypt it or you can scramble it using a key, a secret key, which might be a physical machine like the Enigma 13 or it might be a number like 13.
如果你有沒有加密的文本，你想要寄送的一些消息,你就可以加密它,或者你可以用一個密鈅使其變得混亂，那就像一個英格瑪的物理裝置,或者他就是一個數字。
哈彿公開課 - 計算機科學課程節(jié)選

So, at least for now, investigators and the public are left with only enigma.
NPR: For Bombing Suspects, Question May Be Who Led Whom

If you describe something or someone as an enigma, you mean they are mysterious or difficult to understand.