arcane 和 mysterious 有何区别？

mys‧te‧ri‧ous
1 mysterious events or situations are difficult to explain or understand:
The police are investigating the mysterious deaths of children at
the hospital.
Benson later disappeared in mysterious circumstances.
There's something mysterious going on.

2 a mysterious person is someone who you know very little about and who seems strange or interesting [= enigmatic]:
I decided to find out more about my mysterious new neighbour.
a mysterious stranger

3 someone who behaves in a mysterious way says very little about what they are doing, in a way that makes you want to know more [= secretive]
mysterious about
Helen's being very mysterious about her plans.
She hid her thoughts behind a mysterious smile.

ar‧cane
secret and known or understood by only a few people:
the arcane language of the law

不知道你英语怎么样，上面是我从longman英文词典里给你摘出来的，你看一下。misterious 的意