1. 我醒來時已是白天。
   When I woke up, it was already day.
2. 我們不能在白天看到星星。
   We can't see stars in the daytime.
3. 我們白天工作晚上休息。
   We work in the day and rest at night.
4. 這種炎熱的天氣在夜晚尚能忍受，但白天就令人感到呼吸困難。
   The heat was tolerable at night but suffocating during the day.
5. 你最好白天把功課做完。
   You'd better finish your work in daytime.
6. 指望我白天黑夜都工作是不合情理的。
   It's unreasonable to expect me to work all day and all night.
7. 你在夜晚可以看到星星，白天卻看不到。
   You can see stars by night, but not by day.
8. 貓頭鷹白天睡覺晚上工作。
   Owls sleep by day and work at night.

白的英語翻譯：

天的英語翻譯：