If something exacerbates a problem or bad situation, it makes it worse.
例句
Mr Powell-Taylor says that depopulation exacerbates the problem...鲍威尔-泰勒先生说人口的急剧减少使得该问题更加严重。Longstanding poverty has been exacerbated by racial divisions.种族分化已经加剧了长期的贫困问题。
英英词典释义
Noun
1. action that makes a problem or a disease (or its symptoms) worse;
"the aggravation of her condition resulted from lack of care"
2. violent and bitter exasperation;
"his foolishness was followed by an exacerbation of their quarrel"