pinnacle /ˈpɪnəkəl/

• 1. 

  N-COUNT A pinnacle is a pointed piece of stone or rock that is high above the ground. 尖锥形石块

  例：

  A walker broke his arms, legs, and pelvis yesterday when he plunged 80 feet from a rocky pinnacle.

  一位步行者昨天从80英尺高的尖锥形岩石上摔下来，摔断了胳膊、腿和骨盆。

• 2. 

  N-COUNT If someone reaches the pinnacle of their career or the pinnacle of a particular area of life, they are at the highest point of it. 顶峰

  例：

  She was still at the pinnacle of her career.

  她依然处在事业的巅峰时期。