它们有锐敏的听觉、嗅觉和视觉。
你知道我的眼睛是很锐敏的，而且我又不是不懂。
You know that my eyes are pretty sharp and that Iwasn't born yesterday.
猫的听觉锐敏。
猫的眼睛很锐敏，能发觉人们不会注意到的微小虫子的动作。
A cat has very sharp eyesight and can spot the movement of a tiny bug that man won't even notice.
达尔文是一位锐敏的观察家、准确的记录员、孜孜不倦的收藏者。
Darwin was a keen observer, an accurate reporter, and an indefatigable collector.
探讨了接近母乳的婴儿配方、预防婴幼儿肥胖、增强免疫力、减少过敏、提高认知力与视锐敏度等专利和技术。
Reviewed patent and technology about breast milk simulated infant formula, prevention childhood obesity, enhancing immunity, reducing allergen, enhancing cognitive ability and visual acuity.
至于哈里顿，那份模样就更进一步相似：这在任何时候都是显著的，这时更特别显著；因为他的感觉正锐敏，他的智力正在觉醒到非常活跃的地步。
With Hareton the resemblance is carried further: it is singular at all times, then it was particularly striking; because his senses were alert, and his mental faculties wakened to unwonted activity.
几十年来，女性一直被告知雌激素结合孕激素服用，不仅能缓解更年期阵发性发热感、失眠症，而且能帮助保持骨骼强度、心智锐敏，而最重要的是有益心脏健康。
Women had been told for decades that estrogen taken with progestin would not only ease hot flashes and insomnia but help preserve bone strength, mental acuity and, most important, heart health.
几十年来，女性一直被告知雌激素结合孕激素服用，不仅能缓解更年期阵发性发热感、失眠症，而且能帮助保持骨骼强度、心智锐敏，而最重要的是有益心脏健康。
Women had been told for decades that estrogen taken with progestin would not only ease hot flashes and insomnia but help preserve bone strength, mental acuity and, most important, heart health.
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