sleepwaking cycle

例句：

1. 1.The sleep-wake cycle of the human body is essential for our health and well-being.
   人体睡眠-觉醒周期对于健康和福祉至关重要。
2. 2. The study of sleep-wake cycles has led to new insights into human behavior.
   对睡眠-觉醒周期的研究已经揭示了人类行为的新见解。
3. 3.The sleep-wake cycle can be disrupted by various factors, including stress and jet lag.
   睡眠-觉醒周期受到各种因素的影响，包括压力和时差反应。