邊際報酬 marginal return

邊緣科學 boundary science

便攜式電腦 portable computer; laptop；notebook computer

變相漲價 disguised inflation

標書 bidding documents

表演賽 demonstration match

剝奪冠軍 strip the gold medal of somebody

博彩（業） lottery industry

補缺選舉 by-election

不敗記錄 clean record, spotless record

不承諾放棄使用武力 not undertake to renounce the use of force

不打不成交 No discord, no concord.

不到長城非好漢 He who has neven been to the Great Wall is not a true man.

不分上下的總統選舉結果 the neck-and-neck presidential election result

不可再生資源 non-renewable resources

不良貸款 non-performing loan

不夜城 sleepless city, ever-bright city

不正之風 bad (harmful) practice; unhealthy tendency

布達拉宮 Palata Palace

步行天橋 foot bridge