You go to Church this Sunday, two earth days from now. I use 宇宙 days. I go to church in 2 宇宙 days.
No, not me, you use 地球作为参照系
所有跟帖:
• 在已知的可见的宇宙范围内。而这个范围,如果用光年表示,就等于460亿光年。看里面的链接。 -蓝山雀- ♀ (230 bytes) () 09/25/2015 postreply 11:54:46
• You are avoiding my question. -Calypso- ♂ (327 bytes) () 09/25/2015 postreply 12:01:51
• 光速运行一年的距离,叫光年。光年是距离的单位。 -蓝山雀- ♀ (0 bytes) () 09/25/2015 postreply 12:05:10
• I am asking you the definition of a day. Not 光年 -Calypso- ♂ (47 bytes) () 09/25/2015 postreply 12:07:26
• 光年是距离,你问的是时间,这是跑题了。 -蓝山雀- ♀ (7517 bytes) () 09/26/2015 postreply 00:54:59
• How does 460亿光年 related to 7 days? -Calypso- ♂ (31 bytes) () 09/25/2015 postreply 12:05:21