Do you know that Luther is incapable of being mean?何意?

Do you know that Luther is incapable of being mean?何意? It is mean of you to do that. 不解 Do you know what mean that the boy said? Do you know the_________(mean)of the word? I do not know what you mean to say is, show me the meaning of being lonely Do you know ? . I mean that he is being unfair 应该是Do you know what does is mean.还是Do you know what it means do you know who that is? Do you know who that American is what do you think of Martin Luther King -Do you know that kid?-you mean ____eight-year-old boy,he's