fourfold

英 [ˈfɔːfəʊld]

美 [ˈfɔːrfoʊld]

adj.  四倍的；四重的
adv.  四倍地；四重地

BNC.21904 / COCA.23621

英英释义

adj

• four times as great or many
  1. a fourfold increase in the dosage
  Synonym:quadruplefour-fold
• having four units or components
  1. quadruple rhythm has four beats per measure
  2. quadruplex wire
  Synonym:quadruplequadruplicatequadruplexfour-fold

adv

• by a factor of four
  1. the price of gasoline has increased fourfold over the past two years
  Synonym:four times

双语例句

• Over the same period copper prices have risen fourfold.
  而同期，铜价上涨了3倍。
• The study in the journal Proceedings of the National Academy of Sciences is based on six different surveys on self-reported satisfaction with life since 1990, a period when China's gross domestic product per capita increased fourfold.
  该研究发表在《国家科学院院刊》上，基于自1990年以来6份不同的自我报告的生活满意度调查。1990年以来，中国人均国内生产总值增加了4倍。
• Chinese authorities have already told Beijing that the cost of water will increase fourfold next year.
  中国的有关部门早已告诉北京，明年中国的水费价将增长四倍。
• In some cases output has increased more than fourfold.
  在有些情况下，产量增加了3倍多。
• If the threat of rabies arose every five years, targeting all the wolves in the corridors would cut the risk of extinction over a20-year period by fourfold.
  如果对居住于峡谷内的所有狼群每五年开展一次狂犬病治疗，在20年内，埃塞俄比亚狼种灭亡的可能性将降低四倍。
• But petroleum imports are expected to grow fourfold from 2003 to 2030, with much of the increase coming from Gulf suppliers.
  但预计从2003年至2030年，中国的石油进口量将增长4倍，其中大部分增幅来自于海湾地区的供应国。
• Since 2000, annual growth rates averaging 10 per cent have raised the GDP fourfold.
  2000年以来，年均10%的增长率使得GDP增加了三倍。
• Fourfold or greater change in serum antibody titer to Y.pestis F1 antigen.
  耶尔森氏鼠疫杆菌F1抗原的血清抗体滴度升高4倍或更高。
• Higher demand for solar energy, triggered by concerns about global warming, will drive a fourfold increase in the annual revenues of the global solar equipment industry from$ 20bn last year to$ 90bn in 2010, according to projections published today.
  今日即将发布的预测显示，人们对全球变暖的担忧，导致太阳能需求上升，这将推动全球太阳能设备行业的年收入增长3倍，从去年的200亿美元，到2010年时增至900亿美元。
• Over the full year the deposit base doubled and the market for bonds denominated in the offshore currency grew fourfold.
  去年一年，香港离岸人民币存款的规模增长了一倍，以人民币计价的债券市场规模增长了四倍。