quadruple

名词 quadruple:

1. a set of four similar things considered as a unit
   同义词：quartet, quartette, quadruplet
2. a quantity that is four times as great as another

动词 quadruple:

1. increase fourfold

形容词 quadruple:

1. having four units or components
   同义词：quadruplicate, quadruplex, fourfold, four-fold
2. four times as great or many
   同义词：fourfold, four-fold

1. Their profits have quadrupled/They have quadrupled their profits in ten years.
   他们的利润十年中增长至四倍[他们使利润在十年中增长至四倍]。

quad.ru.ple

adj.（形容词）
Having four parts or members.
四部分：有四部分或四个成员的
Multiplied by four; fourfold.
四倍的：被四乘的；四倍的
Music Having four beats to the measure.
【音乐】 四节拍的
n.（名词）
A number four times as great as another.
四倍量：是另一个四倍的数量
v.tr.intr.（及物动词和不及物动词）
quad.ru.pled,quad.ru.pling,quad.ru.ples
To multiply or be multiplied by four:
使乘四或被四乘：
例句：
quadrupled the order; quadrupled in size.
定单的四倍；原尺寸的四倍

来源：
From Middle English quadriple [fourfold amount]
源自 中古英语 quadriple [四倍的数量]
quadruple [tooth with four roots]
quadruple [有四个根的牙齿]
both from Old French quadruple
都源自 古法语 quadruple
from Latin quadruplum [from neuter of] quadruplus [fourfold]
源自 拉丁语 quadruplum [] 源自quadruplus的中性词 [四重的]
quadru-, quadri- [quadri-]
quadru-, quadri- [表示.四倍，第四.]
-plus [-fold] * see pel- 2
-plus [表示.…倍的.] *参见 pel- 2

【引伸】
quadru.ply
adv.（副词）