桥梁: bridge (and fig.)...
反驳: to retort, to refute...
文人: scholar, literati...
试用: to try sth out, to be on probation...
声音: voice, sound...
节日: holiday, festival...
配音: dubbing (filmmaking)...
退步: to do less well than before, to make a concession, setback, backward step, leeway, room to maneuver, fallback...
文艺: literature and art...
界限: boundary...