valedictorian

例句：

1. 1. He was awarded the prestigious "Golden Key" for his outstanding achievements in science.
   他因其在科学领域的杰出成就被授予“金钥匙”奖。
2. 2. The valedictorian speech at the graduation ceremony was a moving tribute to their hard work and dedication.
   毕业典礼上的领奖演讲是对他们辛勤工作和奉献的感人致敬。
3. 3. The valedictorian's acceptance speech highlighted the importance of perseverance and determination in achievingone's goals.
   领奖者的接受演讲强调了实现目标所需的毅力和决心的重要性。