1ADJ [usually ADJ n]锋利的;锐利的;如刀锋般的 A cutting tool that is razor-sharp is extremely sharp. 锋利的;锐利的;如刀锋般的
...a razor sharp butcher's knife.
锋利的屠刀
...razor-sharp teeth.
锋利的牙齿
2ADJ (思路或头脑)敏捷的,反应快的 If you describe someone or someone's mind as razor-sharp, you mean that they have a very accurate and clear understanding of things. (思路或头脑)敏捷的,反应快的