英汉解释

adj. 四倍的；四重的；四垒的
adv. 四倍；四重

同义词

r. four times
a. four-fold，quadruple，quadruplex，quadruplicate

参考例句

1. He acted illegitimately when he increased the rent fourfold.
他非法地把租金增加到原来的四倍。
2. Over the period, its emissions are expected to increase over fourfold.
在此期间，其温室气体排放量预期上升超过四倍。
3. Visits to our company's website have increased fourfold since last quarter.
本公司网站的访客数从上一季以来增加了四倍。

英英解释

adj.
  1. four times as great or many
  2. having four units or components
adv.
  1. by a factor of four

网络释义

fourfold
四倍的; 四倍; 四重的; 四垒的;
fourfold table
释义：四格表; 四元表;
Fourfold Gospel
四重福音;
fourfold quadruplicity
四重;
fourfold block
四轮滑车; 四轮滑车四饼滑车;