exacerbationn.
英 ek,sæsə'beɪʃən | 美 ɪɡ,zæsə'beʃən
中文n. 恶化；激怒；增剧
词根词源
exacerbation (n.)c. 1400, from Late Latin exacerbationem (nominative exacerbatio), noun of action from past participle stem of Latin exacerbare "exasperate, irritate, provoke," from ex- "thoroughly" (see ex-) + acerbus "harsh, bitter," from acer "sharp, keen" (see acrid).
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