knife-edge

英 [ˈnaɪf edʒ]

美 [ˈnaɪf edʒ]

n.  刀刃

复数：knife-edges　

习惯用语

n.

on a knife-edge
• 胜负难料；成败未定
  finely balanced between success and failure
• The economy is balanced on a knife-edge.
  经济形势尚不明朗。
• 十分焦虑；急于知道结果
  very worried or anxious about the result of sth

牛津词典

noun

• 刀刃
  the sharp edge of a knife

柯林斯词典

• PHRASE 形势难料；结果未卜
  To beon a knife-edgemeans to be in a situation in which nobody knows what is going to happen next, or in which one thing is just as likely to happen as another.
  1. His future remains on a knife edge...
     他前途未卜。
  2. The game is poised on a knife-edge. One mistake or one piece of good luck could decide it.
     比赛形势扑朔迷离。一个失误或是一点运气就有可能决定胜负。
• ADJ-GRADED 形势难料的
  You can useknife-edgeto refer to something that is very exciting or tense because you do not know what is going to happen next.
  1. Tonight's knife-edge vote could be uncomfortably close.
     今晚投票的结果很难预料，双方实力可能会很接近，这令人紧张不安。

英英释义

noun

• a narrow boundary
  1. he lived on a knife-edge between genius and insanity

双语例句

• Besides, in most cases the overlong distance from knife edge to the aspheric surface to be tested will decrease the precision of the knife-edge testing.
  此外，在很多情况下，刀口到待检非球面的距离很长，从而降低了刀口检验精度。
• Knife-edge, agate, unmounted for balances and weighting apparatus
  玛瑙刃形支承，未镶嵌的，供天平或其他称重装置用
• We had to climb over a knife-edge mountain ridge.
  我们必须翻越一道陡峭的山脊。
• Abstract: Shear force is interrelating with width and thickness of plate and obliquity of knife-edge.
  文摘：斜刃剪切时，剪切力的大小与板料的宽度、厚度及斜刃倾角有关。
• The handle is arranged over the main knife-edge area of the knife body.
  所述刀柄位在刀体的主刀口区的正上方。
• The students are on a knife-edge about the examinations.
  学生们对考试感到忐忑不安。
• Tonight's knife-edge vote could be uncomfortably close.
  今晚投票的结果很难预料，双方实力可能会很接近，这令人紧张不安。
• The agricultural merchandisation is a double knife-edge sword.
  农业商品化是一把双刃剑。
• This paper focuses on the theory, setup, and experiment of a visualization system for surface acoustic wave ( SAW) distribution based on knife-edge laser probe.
  介绍了激光刀口法声表面波（SAW）分布图像化高速测量系统的原理和系统构成，并进行了测试验证。
• The stark warning by George Provopoulos, governor of the Bank of Greece, further heightened the stakes ahead of a knife-edge vote on Wednesday in the Greek parliament.
  希腊银行行长乔治·普罗沃普洛斯发出的这个明显的警告进一步提高了将在周三举行的至关重要的投票的风险。