unexplained
01
无法解释的, 未解释的
lacking a clear reason or understanding and left without an explanation
例子
The sudden disappearance of the ship remains unexplained to this day.
船只的突然失踪至今仍无法解释。
Despite extensive investigation, the phenomenon remains unexplained by scientific theories.
尽管进行了广泛的调查，这一现象仍然无法用科学理论解释。
02
未解释的, 原因不明的
having the reason or cause not made clear
