雅思必考的同义替换词汇总答:限制:limit, restrict, confine, define, narrow, tighten, constrict, cap集中:focus on, concentrate on, aim, spotlight, be engrossed in现代:contemporary, modern, current, recent, up-to-date增长:grow, increase, expand, rise悲观:pessimistic, gloomy, depressed, unhappy加速:accelerate, ...