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1.block v.阻碍(hinder)；堵塞(obstruct)；n．街区(street) 例:No country should block any of its markets to foreign trade.//We know all the neighbors on our block. 派生词：blockade( n./v.封锁)：blockage(n.封锁，妨碍) 2.blot n.墨迹，污迹(spot);v.模糊，遮暗(to make obscure) 例:It sends up a global pall of dust that blots out the Sun. 派生词：blotter(n.吸墨纸) 3.bluegrass n.蓝草音乐(from the Blue Grass Boys, performing group)；莓系属的牧草，早熟禾属植物(any of several grasses of which some have bluish-green culms) 联想记忆：blue(蓝色)+grass(草)一有蓝色草的地方的音乐风格-蓝草音乐 例:Bluegrass musician Bill Monroes repertory, views on musical collaboration, and vocal style were influential on generations of bluegrass artists. 4. bluntly ad.坦率地，率直地(directly) 词根记忆：来自blunt(a．坦诚的，直率的) 例:Many bluntly admitted that they thought Jane Eyre was a masterpiece. 5.boarder n.寄膳者：寄宿生(one that is provided with regular meals and lodging) 词根记忆：自board(n.膳食;v.寄宿) 例:Foul play was suspected but never confirmed in the death of the boarderin 1985. 6.boaardinghouse n.寄宿公寓(house providing meals and accomodation) 例:Boardinghouses were built to accommodaie the lssei. | 
