4周搞定2000+托福核心词
aberration = ab(离开) + err(漫游) + ation(表结果) = 离开常规去漫游→偏差
acceleration = ac(加强) + celer(快) + ation(表结果) = n.加快，加速
更坏的结果→恶化
deterioration
常考释义
European countries are becoming increasingly concerned by major threats to European forests, threats which know no frontiers other than those of geography or climate: air pollution, soil deterioration, the increasing number of forest fires and sometimes even the mismanagement of our woodland and forest heritage.
欧洲国家逐渐关注欧洲森林的主要威胁因素，据了解这些威胁主要来自地理或气候：空气污染，破坏土壤，越来越多的森林火灾数量，有时甚至是木材厂和森林遗产的管理不善。
来源于：剑雅7-Test3n. 恶化；变坏；下降
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