pin down

英 [pɪn daʊn]

美 [pɪn daʊn]

确定; 证实; 迫使…作出决定（或明确表态）

柯林斯词典

• PHRASAL VERB 确定；证实
  If you try topinsomethingdown, you try to discover exactly what, where, or when it is.
  1. It has taken until now to pin down its exact location...
     直到现在才确定了它的准确位置。
  2. I can only pin it down to between 1936 and 1942...
     我只能确定是在1936至1942年期间。
  3. If we cannot pin down exactly what we are supposed to be managing, how can we manage it?
     如果我们都不能确切地知道自己该管理什么，那又怎么去管理呢？
• PHRASAL VERB 迫使…作出决定（或明确表态）
  If youpinsomeonedown, you force them to make a decision or to tell you what their decision is, when they have been trying to avoid doing this.
  1. She couldn't pin him down to a date...
     她没有办法强迫他答应约会。
  2. ...their repeated efforts to pin him down on a number of topics...
     他们迫使他对一系列问题明确表态的再三努力
  3. If you pin people down, they will tell you some puzzling things about stress.
     如果非让他们说的话，人们会告诉你一些有关压力的令人费解的事情。

英英释义

verb

• define clearly
  1. I cannot narrow down the rules for this game
  Synonym:peg downnail downnarrow downnarrowspecify
• attach with or as if with a pin
  1. pin up a picture
  Synonym:pin up
• place in a confining or embarrassing position
  1. He was trapped in a difficult situation
  Synonym:trap

双语例句

• To pin down the size of an orbital, we take a contour surface.
  为束缚住轨道的大小，我们取一等值面。
• We should use our secondary forces to pin down several enemy columns.
  我们应该用助攻部队来牵制住敌人的几个纵队。
• He was sure he would pin down the enemy between two firing lines.
  他确信自己能够把敌人压制在两条火力线间。
• The one hope Pluto fans had for revenge was that it was very tough to pin down Eris'size exactly.
  冥王星的粉丝曾有一复仇的希望，那就是要准确确定厄里斯星的大小是很难的。
• Damn! That was terrible. I only knocked the 10 pin down.
  该死！真糟糕，我只击倒了10号瓶子。
• Other causes are harder to pin down.
  其它原因就很难下定论了。
• It is hard to pin down what has been causing honeybees to vanish.
  很难确定是什么原因使蜜蜂突然消失。
• I know there's something wrong but it's hard to pin down.
  我知道有点不对头，可是很难证实。
• But however hard you try, you'll struggle to pin down the identity of this beauty.
  不过不管再怎么想破脑袋，你肯定也还是无法确定这位美人的身份。
• It was difficult to pin down exactly what it was in her that pleased him so much.
  很难确切说清她身上有什么东西使他这样动心。