As well as their incredible sensory acuteness, these dogs had a canine sixth sense.这些狗不但感官惊人地敏锐，还有犬类动物的第六感。In the doctors' eyes the length of time you have lived with your problem somehow dilutes its acuteness.在医生眼里，得病的时间越久，其严重性就越是不强。Everything he writes demonstrates the acuteness of his intelligence.从他的文笔可以看出他心思敏锐。