An Enigma的意思|示意

This question still remains as an enigma in the Western literary research.

一直是西方文学研究中的难解之谜。

How can he successfully resolved that problem is still an enigma.

他如何成功解决那个难题仍是个谜。

The actual origin of the @ symbol remains an enigma.

@符号的确切起源仍然是谜。

Economic growth has been an enigma and the long-range goal of the human society.

自古以来，经济增长一直是人类社会追求的目标和希望解决的一个谜。

The new iPod nano is a bit of an enigma.

新款 iPod nano 有点神秘。

The origin of these peculiar glassy spheres remains an enigma.

这些奇特的玻璃球体的起源仍然是个谜。