学员: student, member of an institution of learning, officer cadet...
认错: to admit an error, to acknowledge one's mistake...
人类: humanity, human race, mankind...
挑拨: to incite disharmony, to instigate...
恐龙: dinosaur, (slang) ugly person...
天下: land under heaven, the whole world, the whole of China, realm, rule...
全都: all, without exception...
公: public, collectively owned, common, international (e.g. high seas, metric system, calendar), make public, fair, just, Duke, highest of five orders of nobility, honorable (gentlemen), father-in-law,...
流行: (of a contagious disease etc) to spread, to propagate, (of a style of clothing, song etc) popular, fashionable...
目睹: to witness, to see at first hand, to see with one's own eyes...