C750 Grasp All Advantages and Disadvantages

I suddenly had an idea and loudly said, "Study your opponent patiently and grasp all of his strengths and weaknesses. This seems to be your usual style of doing things! "

Lin Lan's expression did not change as she laughed coldly, "You finally found out? It seems like my former idiot brother had truly changed. "It seems like he has always been lying low