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v.（使）成四倍( quadruple的第三人称单数 )； 英英释义： quadruple[ 'kwɔdrupl, kwɔ'dru:- ]n.a set of four similar things considered as a unit同义词：quartetquartettequadrupleta quantity that is four times as great as anotherv.increase fourfold"His stock earning quadrupled"adj.hav
