deteriorate /dɪˈtɪəriəreɪt/ v. 变坏;恶化;退化
助记:de-向下,否定
助记:ter-糟糕,坏(terrible)
后缀:-orate 动词后缀
e.g. She was taken into hospital last week when her condition suddenly deteriorated.她是在上周病情突然恶化时被送进医院的。
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