solve mysteries 解开谜团
unsolved mysteries 未解之谜
cosmic mysteries 宇宙奥秘
deep mysteries 深奥的秘密
A: Have you ever heard of the unsolved mysteries in this town?
A：你听说过这个小镇上那些未解之谜吗？
B: Yes, they are quite fascinating and a bit scary.
B：听过，它们非常吸引人，也有点吓人。
1) 难以理解或解释的事物
2) 隐秘的或秘密的信息
3) 神秘学或超自然领域的现象
1. 秘密；谜；奥秘
2. 神秘的事物
noun
1. Things that are difficult or impossible to understand or explain.
Synonym: puzzles, enigmas, secrets