Instead, have him explain himself here:
1. (in his mind) -- What is my "understanding problem" ?
2. Did (Prof.) Greg Lee's answer " ( ... already brings the main issue of your understanding problem quite well to the point) " ? -- and if so, how?
1. (in his mind) -- What is my "understanding problem" ?
2. Did (Prof.) Greg Lee's answer " ( ... already brings the main issue of your understanding problem quite well to the point) " ? -- and if so, how?