本质: essence, nature, innate character, intrinsic quality...
书: book, letter, document, to write...
会长: president of a club, committee etc...
风云: weather, unstable situation...
迟钝: slow in one's reactions, sluggish (in movement or thought)...
正能量: positive energy, positivity...
赴: to go, to visit (e.g. another country), to attend (a banquet etc)...
害: to do harm to, to cause trouble to, harm, evil, calamity...
随机: according to the situation, pragmatic, random...
对面: (sitting) opposite, across (the street), directly in front, to be face to face...