quadruples
v.
（使）成四倍( quadruple的第三人称单数 );
例句:
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We shall discuss quadruples, triples, trees, and indirect triples.
我们将讨论四元组, 三元组, 树和间接三元组.
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Each pulley quadruples the amount of weight a single kite can pull.
每个滑轮的重量是每只风筝载重量的4倍.
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Diabetes quadruples the risk for women and doubles it for men.
糖尿病将使女性患病风险增至普通风险水平的四倍(男性为两倍).
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How are people going to afford electricity if the wholesale price quadruples?
来自SA