英语释义

• define clearly;

  "I cannot narrow down the rules for this game"

• define clearly;

  "Can you pin down the difficulties"

• attach with or as if with a pin;

  "pin up a picture"

片语

ascertain确定；查明；探知

confirm确认；确定；证实；批準；使巩固

identify确定；鑒定；识别，辨认出；使参与；把…看成一样 确定；认同；一致

ensures保证，确定（原形为ensure）

Pin Sb Down使某人做出承诺

Pin Down the Causes确定原因

pin down to使受约束

Pin-down Screen外切后后撤步跳投

pin someone down搞清楚

Pin Me Down表演者

Pin n down确定

pin n down to下结论

dispute辩论；对……进行质疑；争夺；抵抗（进攻）

pin them down压制他们

英汉例句

• the researchers were able to pin down the radiation「s origination point by combining measurements of the gamma-rays with radio-wave observations.

  研究人员把对伽马射线的观测和对无线电波的观测结合起来，可以确定这种辐射的发源点。

• and for almost as long, some of the world’s best diplomatic and legal minds have retorted that trying to pin down a legal definition of aggression is at best fruitless, at worst harmful.

  与此同时，一些世界上最杰出的外交家和律师纷纷反驳，他们认为企图在法律上明确定义侵略罪，不过徒劳无功之举，弄不好还贻害无穷。

• and that is one problem with those who would wish to include measures of wellbeing in policymaking: it is hard to pin down what they wish to measure.

  而这个错误恰恰是那些希望能在决策中加入对幸福的考量的政客常犯的：他们希望考量的那个东西，并无明确的定义。

• the teacher cannot pin down the essence of ancient poetry.

  老师不能清楚地解释古代诗歌的实质。

• although more research is needed to pin down the relationship between low iq and suicide, the study suggests that mental health professionals should be attuned to their patients」 iq, koenen says.

  科龙说：尽管还需要更多的研究来确定智商和自杀之间的关系，研究建议精神健康专家应该调和病人的智商。

• because of this, you can「t pin down these incentives on a particular vehicle, and you never know which dealership might be able to provide the better price at a given time.

  正是因为如此，你就不可能压低某一辆汽车的回扣，而你根本也不知道哪一个商品特许经销商可能会在一个特定的时间提供一个好价钱。

• heisenberg’s uncertainty principle, one of the central tenets of quantum mechanics, maintains that you cannot pin down all the physical properties of a particle at the same time.

  量子力学的一个重要原理——海森堡的不定性原理主张人们不能在同一时间定下粒子的物理属性。

• pin down the most important events in red — those deadlines and meetings that you cannot miss under any circumstances.

  把最重要的事情标记为红色--这些事情和会议在任何情况下都不能错过。

• if we can pin down how much warmer temperatures were in antarctica and greenland at this time, then we can test predictions of how melting of the large ice sheets may contribute to sea level rise.

  英国南极圈调查的一位世界领先的古老地球气候研究的科学家eric wolff说：「最近一个温暖时期，大约在125,000 年前，那时候的海平面比现在的海平面高大约5米，如果我们能确定那个时候南极洲和格陵兰岛的气温，我们就可以测试预测融化的大冰块如何引起海平面上升的原因。

• interest may be trickier to pin down than fear or joy but it nevertheless possesses one of the hallmarks of a basic emotion - its own facial expression.

  兴趣可能会比恐惧或是快乐实现起来更复杂，但是兴趣这种情绪具有基本情绪的一大特征：会在脸上表现出来。

• a decade later, a new suite of experiments may pin down the properties of dark energy and solve what some experts are calling 「the most profound problem」 in modern physics.

  十年后，一组新的试验有可能帮助搞清楚暗能量的特性，相应地，一些专家号称的现代物理学中“最深奥」的问题也将迎刃而解。

• investigators scoured social networking sites such as facebook and myspace but initially could find no trace of him and were unable to pin down his location in mexico.

  调查人员搜寻了诸如facebook和myspace等社交网站，但一开始没有发现他的蹤迹，也就无法确定他在墨西哥的具体藏身点。

• the authors caution that the study is not definitive — more research needs to be done to pin down the exact relationship between the chemicals and the immune system.

  研究中提到这项研究结果有不确定性，还需要更多的研究来确定化学物质与免疫系统的确切关系。

• it’s often difficult to pin down exactly who thought of which joke – the collaborative process often means the jokes are developed by the whole team gradually.

  通常很难确定具体是哪个人想到这个笑话 —合作过程往往意味着笑话是由整个团队逐渐发展的结果。

• meanwhile, nasa」s fermi space telescope is taking a different approach to try to pin down dark matter. it will look for evidence of dark matter 「annihilations」 in space.

  同时，美国太空署的费尔米太空望远镜也在使用不同的方法试图确认暗物质（的存在）。它将寻找暗物质在太空「湮灭」的证据。

• but it has been difficult to pin down the exact relationships between them.

  但要準确定义它们之间的关系还是有困难。

• the information coming out of japan changes so frequently that it's difficult to pin down a specific level of radiation that residents are exposed to; in any case, levels vary from place to place.

  日本传出的信息经常变化,以至于很难确定居民究竟暴露在怎样的辐射水平下;各种情形下不同的地方辐射水平变化不定。