It is not difficult to master. Suppose I say to you, "It's not good to learn from Lei Feng! Because Lei Feng used to be a bad guy who was greedy for petty gain and benefited others at the expense of others. If you learn Lei Feng, you will have no time to learn scientific knowledge and cultivate yourself. "

Of course, what I told you was wrong. But look how you criticize me.

What I said above is my argument that it is not good to learn from Lei Feng, and what kind of person Lei Feng used to be is my argument. Learning from Lei Feng's reasoning process is my argument (please laugh if the argument is not good).

Then, if you directly refute me with the wrong view that "learning from Lei Feng is not good", it is a refutation point; If you quote the true story of Lei Feng to refute my argument about what kind of person Lei Feng is, that is to refute; If you find my logic error or result error during the discussion, refute me, that is to refute the argument.