锋芒

例句：

1. 1. The sharp edge of the knife is always ready to cut through anything.
   这把刀锋利的边缘总是准备好切割任何东西。
2. 2. His sharp insights have helped him make significant breakthroughs in his field.
   他的敏锐见解帮助他在他所在的领域取得了重大突破。
3. 3. The sharp contrast between the old and new styles made for a fascinating exhibition.
   新旧风格之间的鲜明对比使得展览非常吸引人。