bec商务英语高级词汇量|2017年商务英语BEC高级口语词汇辅导

　　别开生面having sth. New
　　别有用心have ulterior motives
　　彬彬有礼refined and courteous urbane
　　兵不厌诈in war nothing is too deceitful
　　博古通今erudite and informed
　　不败之地incincible position
　　不耻下问feel not ashamed to learn from one's subordinates
　　不可救药be past praying for beyond redemption
　　不劳而获reap where one has not sown
　　不屈不挠fortitude indefatigability perseverance persevere tenacity
　　不速之客crasher uninvited guest
　　不同凡响outstanding
　　不言而喻speak for itself tell its own story tell its own tale went without saying
　　不遗余力spare no effort spare no pains
　　不以为然not approve object to
　　不义之财filthy lucre filthy pelf the mammon of unrighteousness
　　不亦乐乎extremely
　　不远千里go to the trouble of traveling a long distance
　　不约而同happen to coincide

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