Fourfold

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

校对:塞勒斯特

• Might not that woman, by her labour, have made the reparation ordained by God in paying fourfold? 本杰明·富兰克林. 富兰克林自传.
• He reasoned that the advantages thus obtained would be fourfold: a minimum of machinery and parts; greater compactness; a saving of power; and greater economy in mining. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

校对:玛克辛