●do a ˈroaring trade (in sth) () to sell a lot of sth very quickly售出大量货物；生意兴隆◆The coffee shops were doing a roaring trade.咖啡馆生意十分兴隆。●a roaring sucˈcess () a very great success巨大的成功；辉煌的胜利◆The advertising campaign has been a roaring success.广告宣传获得巨大成功。