Eng: Did not understand

完全不知道

Did not know, Did not understand

Completely, Didn't know, Doesn't know, Don't know, Entirely, I didn't know, I don't know, Knew, Know, Knowing, Known, Knows, To know

不了解

Did not understand

Can't, Consider, Couldn't, Knew, Know, Knowing, Knows, Not, To consider, To know, To understand, Understand, Understanding, Understands, Understood