Fourfold

['fɔːfəʊld] or ['fɔrfold]

解释:

(adv.) by a factor of four; 'the price of gasoline has increased fourfold over the past two years'.

校对:塞勒斯特--From WordNet

解释:

(a. & adv.) Four times; quadruple; as, a fourfold division.

(n.) Four times as many or as much.

(v. t.) To make four times as much or as many, as an assessment,; to quadruple.

整理:玛丽

同义词及近义词：

a. Quadruple.

n. Four times as many, four times as much.

校对:玛克辛