uncertainty

英 [ʌnˈsɜːtnti]

美 [ʌnˈsɜːrtnti]

n.  犹豫; 迟疑; 无把握; 拿不定的事; 令人无把握的局面

复数：uncertainties　

IELTS化学

Collins.2 / BNC.2981 / COCA.3728

牛津词典

noun

• 犹豫；迟疑；无把握
  the state of being uncertain
  1. There is considerable uncertainty about the company's future.
     这家公司的前景相当渺茫。
  2. He had an air of uncertainty about him.
     他显出将信将疑的神情。
• 拿不定的事；令人无把握的局面
  something that you cannot be sure about; a situation that causes you to be or feel uncertain
  1. life's uncertainties
     人生的不可知因素
  2. the uncertainties of war
     战争带来的不确定性

柯林斯词典

• N-VAR 不确定；犹疑
  Uncertaintyis a state of doubt about the future or about what is the right thing to do.
  1. ...a period of political uncertainty.
     政治动荡的一段时期
  2. ...the uncertainties of life on the West Coast.
     西海岸生活的迷茫

英英释义

noun

• being unsettled or in doubt or dependent on chance
  1. the uncertainty of the outcome
  2. the precariousness of his income
  Synonym:uncertainnessprecariousness
• the state of being unsure of something
  Synonym:doubtincertitudedubietydoubtfulnessdubiousness

双语例句

• A method for evaluation of uncertainty was established with standard deviation of relative error.
  建立了一种以相对误差的标准偏差统计不确定度的评估方法。
• This energy uncertainty in turn appears as a variability in the apparent mass of the particle.
  这种能量的不确定范围，又表现为粒子表观质量的可变性。
• All this uncertainty breeds insecurity.
  这样变来变去使人产生不安全感。
• This paper is concerned with Robust stabilization problem for linear neutral delay systems subject to parameter uncertainty.
  研究了一类线性参数不确定中立时滞系统的鲁棒镇定问题。
• They hoped the waiting and the uncertainty would wear down my resistance
  他们希望拖延搁置会瓦解我的抵抗。
• It was a time of terrible uncertainty
  那是一切都很不确定的一段时间。
• Global warming adds another layer of uncertainty and risk.
  全球变暖又增加了一层不确定因素和风险。
• One option gives me a pile of hard cash, but uncertainty and the stigma of unemployment.
  选择一给了我一笔实实在在的现金，但也带来了不确定性和失业这个污点。
• Separation, they say, could cause uncertainty, confusion and inefficiency.
  他们称，分开可能导致不确定性、困惑和效率低下。
• The climate is a complex system, of course, and forecasting it fraught with uncertainty.
  当然，气候是个复杂的系统，对气候进行预测也充满了不确定性。