Someone or something that is mysterious is strange and is not known about or understood. 神秘的; 难以理解的
adjective [原级] 不可思议的，难以理解的；（人）神秘的，陌生的；保密的，故弄玄虚的
If someone is mysterious about something, they deliberately do not talk much about it, sometimes because they want to make people more interested in it. 诡秘的
- mysterious 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 9 Flying cats mysterious 形容词: 神秘的，难以理解的
- Lesson 30 Exploring the sea-floor
