臻

例句：

1. 1. The painting is a masterpiece and represents the pinnacle of Chinese art.
   这幅画是杰作，代表了中国艺术的巅峰。
2. 2. She has achieved her goal with utmost dedication and effort.
   她以最大的努力和奉献实现了她的目标。
3. 3. The team's performance was at its best in this competition.
   该队在这次比赛中的表现达到了最佳。