☆artificial synthetic, fabricated, contrived, fake, mock, bogus, counterfeit, pseudo☆conventional traditional, historical, past; accepted, common, regular, routine, mainstream, ordinary☆demandrequest, claim, need, order, require, call for☆decline decrease, degeneration, drop, fall, recession, depression, reduction, slump, worsening☆develop evolve, advance, grow, improve, progress, flourish☆difficulty handicap, hardship, adversity, challenge, complication, dilemma, perplexity, plight, trouble☆early first, old, ancient, primitive, previous, former, remote☆finddiscover, come across, encounter, hit on, expose, notice, note, observe, recognize, spot, uncover☆future what's next, prospect, approaching, expected, destined, forthcoming☆howdescribe, operate, explain, clarify, demonstrate, eludicate, expound, illustrate, interpret, account for ☆inevitableunavoidable, certain, destined, fated, inescapable, sure☆militantarmed, belligerent, army, weapon, warlike☆objectioncommercial challenge, complaint, disapproval, opposition, protest, query, question, remonstration☆obstacle bar, barricade, barrier, block, blockage, check, obstruction, problem, snag, hurdle☆prevalent common, usual, prevailing, widespread, systematic, collective, general, popular☆reducecurtail, cut, decrease, halve, impair, lessen, moderate, trim, slash☆rolefunction (provide, support, weaken, smooth, solve), job, position, duty, post, task, contribution ☆recent modern, current, now, nowadays, today, contemporaneous, new, novel, present, up-to-date☆simulate virtual, create, reproduce, pretend, imitate☆significanceimportance, milestone, impact, justification, gist, implication, point, purport, vital business, economic, financial, mercantile, profitable, pecuniary☆worldwideinternational, cosmopolitan, global, universal, ubiquitous, widespread, around the world解决：solve, resolve, deal with, cope with, handle, tackle消除：get rid of, eradicate, eliminate依赖：rely on, depend on, count on十分：very much, immensely, hugely, largely, greatly, enormously, tremendously损害：damage, hurt, injure, harm, impair给予：give, offer, render, impart, provide发展：develop, cultivate, foster优势：advantage, merit, virtue, benefit, upside, strength缺陷：disadvantage, detect, demerit, drawback, downside, weakness