| 单词 | acuity | 
| 释义 | acuitynoun  acu·i·ty  ə-ˈkyü-ə-tē  a-    plural acuities     : keenness of perception  hearing acuity mental acuity acuity nounas in sensitivitythe state or quality of being able to sense slight impressions or differences a worrisome deterioration in the acuity of his hearing over the years Synonyms & Similar Words Relevance 
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