enigma

音標(biāo)發(fā)音

Why the universe is as it is remains an enigma to science.
但是宇宙到底怎樣演化成今天這樣在科學(xué)上還是個(gè)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.
如把這次巨大而陰慘的六月起義作為憤怒和謎的結(jié)合，我們感到第一個(gè)街壘里有條龍，而第二個(gè)背后是斯芬克司。
Consciousness is still an enigma.
知覺仍是一個(gè)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。
哈佛公開課 - 計(jì)算機(jī)科學(xué)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(gè)密鑰使其變得混亂，那就像一個(gè)英格瑪?shù)奈锢硌b置,或者他就是一個(gè)數(shù)字。
哈佛公開課 - 計(jì)算機(jī)科學(xué)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.