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permanent?[?pm?n?nt] adj. 永久(性)的;耐久的;稳定的;常设的 n. 烫发
【例】Success was defined as an absence of all symptoms and permanent restoration of?the cornea.
所有病症消除、角膜永久重建，则治疗取得成功。
optimism?[pt?m?z?m] n. 乐观;乐观主义
【派】optimize?vt. 使最优化，使尽可能有效
【例】Three developments featured in this issue collectively(全体地，共同地)give?grounds for optimism that would have been scarcely believable a year ago in?the wake of another failed vaccine and continuing problems supplying drugs to all who need them.
这个问题的三个显著发展让我们有理由乐观起来，而这在一年前几乎是不可置信的。那时有一种疫苗又失败了，给所有需要的人群带来了持续不断的供药问题。
hence?[hens] adv. 因此，所以;从此
【例】Evidence suggests that the human genome, and hence the brain, has changed?little in the past 60,000 years.
证据表明，人类基因组和由此发展而来的大脑在过去6万年间几乎没有变化。
exploration?[?eksplren] n. 探测;勘探;探险;搜索;研究;[医]探查术
【派】unexplored?adj. 未经勘探的;尚未考察的;未想到的;未考虑过的
【例】The film explores the relationship between artist and instrument.
这部电影探究了艺术家和乐器之间的关系。
impairment?[?m?pe?m?nt] n. 损害;损伤
【例】If there is a specific brain area for reading and a person has impairment in this?area, in theory all his languages should be affected.
如果大脑有特定的阅读区域，而一个人在这个区域受损，那么理论上所有的语言都会受到影响。
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