3.词语解释
[1].(A) ameliorated：(改善)make better or moretolerable
[2].(B) ascertained：(确定)to make certain, exact, orprecise
[3].(C) diagnosed：(诊断)to recognize (as a disease)by signs and symptoms
[4].(D) exacerbated：(加剧恶化)to make more violent, bitter, or severe
[5].(E) overlooked：(忽视)to look past : MISS
[6].(F) worsened：(恶化)to make worse
(OGVerbal Practice Set 1 Q1, Easy)
