adj. 四重的;四倍的;由四部份组成的
n. 四倍
vt.& vi. 使乘四或被四乘
This year we produced quadruple the amount produced in 2002.
我们今年的产量是2002年的四倍。
China seeks to quadruple its income in twenty years.
中国力求在20年内将其收入翻两番。
The quadruple murder has replaced property prices as the sole topic of interest.
这4起连环谋杀案已经取代房价成为了人们惟一感兴趣的话题。
Fifty-nine percent of its residents have attended graduate school – quadruple the national average.
该地区59%的居民读过研究生–是全国平均水平的4倍。
We have hope to quadruple the total industrial and agricultural output by the end of the century, which is a lofty aim.
我们有雄心壮志, 到本世纪末, 使工农业生产总值翻两番。