oligopoly
oligopoly[ˌɒlɪˈgɒp(ə)li](pl. -ies)- a state of limited competition, in which a market is shared by a small number of producers or sellers
寡头卖方垄断
派生oligopolistnounoligopolisticadjective语源- late 19th cent.: from oligo- small number, on the pattern of monopoly
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