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新东方-柯林斯雅思备考词典
erratic
英 [ɪˈrætɪk]
[ADJ]
1. 不规则的 , 不稳定的
Something that is erratic does not follow a regular pattern, but happens at unexpected times or moves along in an irregular way.
双语例句
例：Argentina's erratic inflation rate threatens to upset the plans.
阿根廷动荡不定的通货膨胀率很可能打乱这些计划。