[attrib.]consisting of four parts or elements 四部分(组成)的,四方面的 a quadruple murder. 涉及四方的谋杀案。 ■consisting of four times as much or as many as usual 四倍的;四重的 a quadruple vodka. 一份四倍浓度的伏特加酒。 ■(of time in music) having four beats in a bar (音乐节拍)四拍子的
verb
increase or be increased fourfold (使)增长四倍 [no obj.]oil prices quadrupled in the 1970s. 20世纪70年代石油价格上涨了四倍。
noun
a quadruple thing, number, or amount 四倍的东西(或数字、数量)
派生 quadruply adverb 语源
late Middle English (as a verb): via French from Latin quadruplus, from quadru- 'four' + -plus as in duplus (see duple)