azelatin

例句：

1. 1.The zeitgebers are the natural light that regulates our sleep and wake cycles.
   昼夜节律是调节我们睡眠和醒着周期的天然光线。
2. 2.She was a zealous advocate for environmental conservation.
   她是一个热情的环保倡导者。
3. 3.The team's performance was a testament to their dedication and hard work.
   团队的表现证明了他们的奉献精神和辛勤工作。