需要记忆的高频词汇及同义词替换artificial synthetic, fabricated, contrived, fake, mock, bogus, counterfeit, pseudoconventional traditional, historical, past; accepted, common, regular, routine, mainstream, ordinarydemandrequest, claim, need, order, require, call fordecline decrease, degeneration, drop, fall, recession, depression, reduction, slump, worseningdevelop evolve, advance, grow, improve, progress, flourishdifficulty handicap, hardship, adversity, challenge, complication, d
