- UID
- 183993
- 帖子
- 8
- 积分
- 10
- 学分
- 126 个
- 金币
- 0 个
- 在线时间
- 2 小时
|
It's funny depend on how to understand the meaning of "day".
The period of light between dawn and nightfall; the interval from sunrise to sunset.
The 24-hour period during which Earth completes one rotation on its axis. |
|