This work is done by Tom et et al 是“等等”的意思,和etc近义。请参考如下英文百科全书的解释 aladv 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 , and others] 2: used as an abbreviation of `et alibi' when referring to other occurrences in a text [syn: et , and elsewhere]et (Lat) 以及其他人,等人/ 'et 'æl /以及其他人,等人written after a list of names to mean that other people are also involved in somethingExample:Boers et al, 2001