Eng: Didn't understand

莫名其妙

Didn't understand, Don't understand, Impossible, Incomprehensible, Mysterious, Oddball

Indescribable

不明白

Didn't know, Didn't understand

Clear, Easy to understand, Realize(s), Understand, Understandable, Understanding, Understands, Understood, Unexpected, Unknown

不解

Didn't understand, Doesn't understand, Don't understand, Puzzled, Uncomprehending