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六级考试核心词汇及例句分析b bacteria n.细菌(05-1) ban v.禁止 The machines contain high levels of lead and other hazardous substances, and are already banned from California landfills . barrier n.障碍(07-12) Young blacks, whose unemployment rate stands today at 50 96, will find another barrier in front of them.(90-6) She wrote poetry that broke through national barriers.(06-6 听) be aware of 1.知道(08-12) Workers should be aware of the potential dangers at the workplace. behavior n.举止, 行为 Human behavior is mostly a product of learning, whereas the behavior of an animal depends mainly on instinct. 人类的行为主要是学习观察的结果，而动物的行为则主要依赖于本能。 benefit n.利益促进或增强福利的东西;好处 E-books have so many benefits that they will replace traditional books. benign adj.和蔼的;温和的;慈祥的 bias n.偏见;成见 The Oxford dictionary can therefore stand more vigorous scrutiny for cultural bias than the Longman publication because the latter does not hesitate about viewing the rest of the world from the cultural perspectives of the English-speaking world. | 
