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1. access ['ækses] vt. 使用;存取;接近 n. 进入;使用权;通路For logistical and political reasons, scienti
1. feature ['fiːtʃə] n. 特色,特征;容貌;特写或专题节目 v. 起重要作用;以…为特色;由…主演The spac
1. potential [pəˈtenʃl] n. 潜能;可能性;[电] 电势adj. 潜在的;可能的;势的We are aware of the poten
1. define [dɪ'faɪn] vt. 定义;使明确;规定This booklet defines the committee's fun
1. infer [ɪn'fɜː] v. 推断;推论I can infer from what&n
1. allow [ə'laʊ] v. 允许;给予;认可; 容许;使能够 (发生)The compromise will allow him to conti
1. challenge ['tʃælɪn(d)ʒ] n. 挑战;怀疑 vt. 向…挑战;对…质疑The demonstrators h
1. leadership ['liːdəʃɪp] n. 领导能力;领导阶层Without correct 
1. consumer [kən'sjuːmə] n. 消费者;用户,顾客The choice of consumer goods availabl
1. essay ['eseɪ] n. 散文;短文;随笔We asked Jason to write an essay about his hometow