1·In this case, keep your window coverings closed so that sunlight - which adjusts your internal clock - doesn't interrupt your daytime sleep.
这种情况下,拉上你的窗帘那么阳光——它将调节你的生物钟——将不会在白天睡觉时候打扰你。
2·He has an internal clock that the Swiss would envy.
他有一个让瑞士人都妒忌的生物钟。
3·Natural sunlight alerts your internal clock to wake up better than artificial light.
自然光会告诉你的生物钟应该清醒一下了,这比灯光效果更好。
4·Working nights or rotating shifts can disrupt your internal clock. You may feel tired when you need to be awake. And you may have trouble sleeping during the day.
夜间工作或者是三班倒,会打乱你的生物钟。晚上瞌睡连天却不敢睡,白天却又睡不好。