Enigma
01
谜, 神秘
the quality of being very challenging to explain or understand
例子
She always had an air of mystery around her, making her an enigma to even her closest friends.
她总是带着一种神秘的气息，使她即使对最亲密的朋友来说也是一个谜。
The sudden disappearance of the airplane over the ocean is one of aviation 's greatest enigmas.
飞机在海洋上突然消失是航空界最大的谜团之一。
02
谜, 神秘
a puzzling or mysterious issue or situation
例子
The coded letter from the spy was an enigma, and they needed their best cryptographer to decipher it.
间谍的编码信件是一个谜，他们需要他们最好的密码学家来破译它。
The reason for the sudden disappearance of the species remains an enigma to scientists.
物种突然消失的原因对科学家来说仍然是一个谜。
