正在

in the process of; in the midst of; at the moment; in course of; in the act of; currently; presently

争论的

contestable; argumentative; eristic; controversial; gladiatorial; disputant; polemical

问题

question; problem; issue; matter; subject; trouble; point; query; conundrum; woe; rub; snag; shauri; Q; problematic; questionable; problematical; debatable