Subgroup
['sʌbgruːp] or ['sʌb'grʊp]
解释:
(noun.) (mathematics) a subset (that is not empty) of a mathematical group.
(noun.) a distinct and often subordinate group within a group.
安娜贝尔整理--From WordNet
解释:
(n.) A subdivision of a group, as of animals.
录入:梅林达
解释:
n. any subordinate group in a classification.
约翰娜编辑