2017年商務(wù)英語BEC高級口語成語詞匯(二)

　　別開生面having sth. New

　　別有用心have ulterior motives

　　彬彬有禮refined and courteous urbane

　　兵不厭詐in war nothing is too deceitful

　　博古通今erudite and informed

　　不敗之地incincible position

　　不恥下問feel not ashamed to learn from one's subordinates

　　不可救藥be past praying for beyond redemption

　　不勞而獲reap where one has not sown

　　不屈不撓fortitude indefatigability perseverance persevere tenacity

　　不速之客crasher uninvited guest

　　不同凡響outstanding

　　不言而喻speak for itself tell its own story tell its own tale went without saying

　　不遺余力spare no effort spare no pains

　　不以為然not approve object to

　　不義之財filthy lucre filthy pelf the mammon of unrighteousness

　　不亦樂乎extremely

　　不遠(yuǎn)千里go to the trouble of traveling a long distance

　　不約而同happen to coincide