reversal

英 [rɪˈvɜːsl]

美 [rɪˈvɜːrsl]

n.  颠倒; 彻底转变; 反转; 倒置; 倒退; 逆转; 退步; 转胜为败; (位置或功能的)转换，交换

复数：reversals　

TEM8医学

BNC.7892 / COCA.7227

牛津词典

noun

• 颠倒；彻底转变；反转；倒置
  a change of sth so that it is the opposite of what it was
  1. a complete/dramatic/sudden reversal of policy
     政策的全面 / 剧烈 / 突然转变
  2. the reversal of a decision
     决定的撤销
  3. The government suffered a total reversal of fortune(s) last week.
     上星期，政府的命运发生逆转。
• 倒退；逆转；退步；转胜为败
  a change from being successful to having problems or being defeated
  1. the team's recent reversal
     球队最近的失败
  2. The company's financial problems were only a temporary reversal.
     公司的金融问题只是暂时的挫折。
• （位置或功能的）转换，交换
  an exchange of positions or functions between two or more people
  1. It's a complete role reversal/reversal of roles (= for example when a husband cares for the house and children while the wife works) .
     这是一种彻底的角色转换。

柯林斯词典

• N-COUNT （过程、政策或趋势的）反转，倒转，逆转
  Areversal ofa process, policy, or trend is a complete change in it.
  1. The Financial Times says the move represents a complete reversal of previous US policy...
     《金融时报》说此举一反美国以往的政策。
  2. This marked a 7% increase on the previous year and the reversal of a steady five-year downward trend.
     这标志着在前一年基础上有了7％的增长，扭转了5年来持续下降的趋势。
• N-COUNT （角色的）交换，互换
  When there is a rolereversalor areversal ofroles, two people or groups exchange their positions or functions.
  1. When children end up taking care of their parents, it is a strange role reversal indeed.
     当孩子们最终要照顾父母时，这的确是一种奇妙的角色互换。
• N-COUNT (通常涉及金钱损失的)失败，逆境，挫折
  Areversalis a failure, usually involving the loss of money.
  1. They teach managers to accept reversals as a fact of business life.
     他们教给管理人员要将挫折视为生意上的平常事。

英英释义

noun

• a major change in attitude or principle or point of view
  1. an about-face on foreign policy
  Synonym:about-facevolte-facepolicy change
• a change from one state to the opposite state
  1. there was a reversal of autonomic function
• the act of reversing the order or place of
  Synonym:transposition
• turning in the opposite direction
  Synonym:reversionreverseturnaboutturnaround
• a judgment by a higher court that the judgment of a lower court was incorrect and should be set aside
• a decision to reverse an earlier decision
  Synonym:change of mindflip-flopturnaboutturnaround
• turning in an opposite direction or position
  1. the reversal of the image in the lens
  Synonym:turn around
• an unfortunate happening that hinders or impedes
  Synonym:reversesetbackblowblack eye

双语例句

• Time reversal invariance is a very useful symmetry in subatomic physics.
  时间反演不变性在亚原子物理中仍然是一种很有用的对称性。
• I touched the wrong pins causing a current reversal and all of the diodes on the circuit board exploded.
  我触碰了错误的管脚，从而导致了电流的反转，结果那块电路板上的所有二极管都被烧坏了。
• The reversal efficiency was defined and the regeneration effect was also evaluated.
  给出了反吹效率的定义，对再生效果进行了简要评价。
• Reversal effect of Tanshinone Microemulsion is more effective than that of Tanshinone and Microemulsion.
  微乳丹参酮对多药耐药逆转作用较丹参酮和微乳逆转效果更显著。
• The natural market response has been a reversal in the past flows of haven-seeking funds into sterling and gilts.
  市场的反应自然是逆转了过去为求避险而把资金投向英镑和英国国债的操作。
• But resurgent equity and real estate prices suggest a reversal of flows is under way.
  但复苏的股市和房地产价格表明，资金的流动方向正在逆转。
• A sideways price formation at the top or bottom of the market that indicates a major market reversal.
  在市场价格的顶端和底部一个价格横摆走势形成，来表示一个主要的市场逆转。
• He suffered a reversal of fortune and lost all his money.
  他时运逆转，丢失了全部钱财。
• Envy and fear are the motivators of this reversal of policy.
  对中国的羡慕和担忧，促使印度扭转了政策方向。
• An upset and reversal of this decline is entirely possible.
  这一下降趋势被打乱或发生逆转，是完全有可能的。