词汇 | quadruple |
释义 | quad·ru·ple v if you quadruple an amount, or if an amount quadruples, it becomes four times as big 变成四倍; 以四倍乘〔某数〕: The number of car owners has quadrupled in the last twenty years. 在过去二十年里,拥有汽车的人数增长至四倍。 |
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