threshold [ˈθreʃhoʊld]

例句:

• The idea hinges on something called the ventilatory threshold.
  来自WSJ
• The consensus has clearly shifted in favour of raising the nuclear threshold.
  显然大家已普遍开始转向支持提高核武器使用的门槛了。
  
• We are on the threshold of a new era in astronomy.
  我们很快就将迎来天文学的新纪元。
  
• Here she is on the threshold of womanhood.
  现在她将迈入成年期。
  
• But that is a very low threshold to cross.
  来自WSJ
• Fremstad argues that the current poverty threshold is unrealistic.
  来自MSN
• Scientists are on the threshold of a breakthrough in their treatment of that disease.
  科学家在治疗那种疾病方面很快就会取得突破。
  来自《权威词典》
• She had never crossed the threshold of a bar before.
  她过去从未进过酒吧。
  来自《权威词典》