46億光年是距離單位，是按光的速度走了46億年的距離，遠的啦，不要不要的。

來源: lhy86 於 2022-07-15 11:52:11 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.