ibid：出处同上，但是具体如何解释？

ibid 是“同上 如前”的意思

这是拉丁文，
i.b.,ibid

外语翻译是： the same

et al

adv 1: used as an abbreviation of `et alii' (masculine plural) or `et aliae' (feminine plural) or `et alia' (neutral plural) when referring to a number of people [syn: et al., and others] 2: used as an abbreviation of `et alibi' when referring to other occurrences in a text [syn: et al., and elsewhere]

et al
abbr.
(Lat) 以及其他人，等人
两个及以上作者的省略