sixfold [ˈsɪksfoʊld]

例句:

• By comparison, a typical rubber band snaps if it is stretched more than sixfold, Suo says.
  来自SA
• Studies show that having dense breasts raises the risk of developing breast cancer fourfold to sixfold.
  来自WSJ
• The population of this town increased sixfold when gold was found in the surrounding hills.
  自从在周围山丘上发现了金子之后,这个镇上的人口增长了六倍.
  
• In some products imports have grown sixfold and prices have fallen by a third.
  一些产品的进口增长了六倍,价格滑落了三分之一.
  
• There has been a more-than-sixfold increase in junior tournament participation on the West coast in the last three years.
  来自WSJ