白昼

例句：

1. 1.The sun is shining brightly during the day.
   太阳在白天灿烂地照耀。
2. 2. We spent most of our time outdoors during the day.
   我们在白天大部分时间都在户外度过。
3. 3. During the day, the temperature can vary greatly.
   白天，温度可以有很大的变化。