Definitions

[1] n. 尖锐, (疾病的)剧烈, 敏锐

[2] [化] 锐度; 分辨能力

[3] [医] 敏度

[ ə'kjuiti ]

1. The hearing acuity of dogs is superior by far to that of humans.
   狗的聽覺比人類靈敏不知多少倍。
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