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

• He's on a knife-edge about his exam results.
  他对考试成绩十分担心。
• 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
• Changed machine small, energy-saving, grinding out any angle is a knife-edge sharp and durable replacements.
  改机体积小，节能，磨削出的任何角度刀口锋利耐用是更新换代产品。
• The economy is balanced on a knife-edge.
  经济形势尚不明朗。
• The team's future was on a knife-edge last night.
  昨晚，该球队前途未卜。
• Greece has pulled back from the brink of default and averted a broader eurozone crisis after backing sweeping austerity measures in a knife-edge parliamentary vote.
  希腊议会在一场生死攸关的投票中通过了全面财政紧缩措施，从而使希腊从违约边缘退了回来，也避免了欧元区爆发更大规模的危机。
• At the moment the election seems balanced on a knife-edge.
  此刻选举似乎处于摇摆不定的状态。
• 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。
• 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。
• On Orbit MTF Test Research of Remote Sensors Based on Knife-edge Method spaceborne remote sensing
  基于刃边法的航天光学遥感器在轨MTF测试研究