| 释义 |
quad.ru.ple (obj)HkwBd5rU:7p6, $kwB:5drU:-vto become four times as big, or to multiply (a number or amount) by four成四倍;以四乘The number of students at the college has quadrupled in the last ten years. [I]在过去十年中，大学生的数量增长了四倍。We expect to quadruple our profits this year. [T]今年我们打算把利润翻四番。
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