nail down

1. PHRASAL VERB 弄清;确定
   If you nail down something unknown or uncertain, you find out exactly what it is.
   1. It would be useful if you could nail down the source of this tension.
      如果你能弄清这种紧张的根源，将会大有益处。
2. PHRASAL VERB 确定(协议)
   If you nail down an agreement, you manage to reach a firm agreement with a definite result.
   1. The Secretary of State and his Russian counterpart met to try to nail down the elusive accord.
      美国国务卿和俄罗斯外交部长进行了会晤，试图敲定这项难以达成的协议。
3. PHRASAL VERB 钉牢;钉住
   If you nail something down, you fix it firmly onto something.
   1. Lay strips of 4mm ply over the mesh and nail these down with panel pins.
      把4毫米厚的胶合板条铺在网子上，然后用镶板钉钉牢。

1. It would be useful if you could nail down the source of this tension.
   如果你能弄清这种紧张的根源，将会大有益处。
2. The Secretary of State and his Russian counterpart met to try to nail down the elusive accord.
   美国国务卿和俄罗斯外交部长进行了会晤，试图敲定这项难以达成的协议。
3. Lay strips of 4mm ply over the mesh and nail these down with panel pins.
   把4毫米厚的胶合板条铺在网子上，然后用镶板钉钉牢。
4. The latter is characterized by the inability to nail down requirements up front, making it necessary to continually adapt and re-estimate as a project progresses.
   后者的特征是没有事先明确了解需求的能力，因而需要随项目的进展不断地调整适应和重新评估。
5. Starting with the frame list keeps the storyboard organized and helps you nail down the step-by-step outline before delving into the details of each frame or sketch.
   以框架列表开始可以使故事板有组织，而且还可以帮助你钻研每一框架或者示意图细节之前确定一步步的纲要。
6. The investment side of ROI can be easier to nail down than the return, as it boils down to what it costs to build and maintain the software product.
   相对于回报来说，ROI的投资这一边更容易被固定下来，这是由于它归结为建立和维护软件产品的费用。
7. Pastels came into style when a 1918 retail trade publication attempted to nail down the rules: pink for boys and blue for girls.
   1918年，一份零售的行业刊物2试图确定这样的惯例：粉红色是男孩子的颜色，而蓝色是女孩子的颜色。也就在那时，浅色开始流行起来。
8. If we could just nail down a few more contracts, we'd be all right.
   我们如果能再确定几个契约就好了。
9. Similarly, by partnering with PetroChina, shell can nail down a customer nation determined to wean itself off coal.
   同样，通过与中石油携手收购，壳牌就可敲定一个决心摆脱对煤炭依赖的客户国。
10. Objective: to nail down manpower allocation of prevention and control of hepatitis B in CDC in cities and counties.
    前言：目的：明确我国地（县）级疾病预防控制中心乙肝防制工作人力配置需要。
11. I'm thinking it may help us nail down the vic's ID.
    我在想这么做或许能帮我们找出死者身份。
12. But I will just nail down and do my best to win a place in the team for the next game.
    但是在下一场比赛，我铁定做到最好以赢得首发位置。
13. With government support set to play a crucial part in a deal, the participants are eager to nail down details before the election outcome potentially blurs authority between the Bush administration and its successor.
    由于政府支持将在这桩交易中起到至关重要的作用，交易各方迫切希望在大选前厘定细节，因为选举结果可能导致布什政府和新政府之间的权限变得模糊。
14. What we hope to achieve in today's meeting is to nail down the programming content.
    希望在今天的会上我们能把节目内容确定下来。
15. The public benefits of commodity packaging is that the design of packaging should propose reasonable social ethic and order, promulgate civilization, nail down the tendency of social morality, and have the idea of serving the public.
    摘要商品包装的公益性是指包装设计应倡导合理的社会伦理秩序，传播文明精神，明确社会道德价值趋向，具有为社会公众服务的公益观念。
16. When the country is on-call for your nuptials, it's less important to nail down what you really want.
    如果国家对你的婚礼能随时准备好，就不用太确定你真正需要什么。
17. If I do, then I may not want to or need to nail down the details.
    如果是，那么我就不想做更多了，或者需要明确一些细节。
18. And go walking where there are no shops, crowds or the tube. Fee was forced to roll up Persian carpets and have Stuart nail down linoleum she bought sight unseen from the store in Gilly.
    在没有商店、人群、地铁的地方漫步。菲被迫卷起了她的波斯地毯并叫斯图阿特钉上亚麻油地毯，这是她到吉利商店时即兴买下来的。
19. But while Owen was top scorer on a regular basis for Liverpool in the Premier League, he struggled to nail down a starting place at the Bernabeu.
    在英超中，欧文是利物浦联赛中的顶级射手，但在伯纳乌他却为主力位置而苦苦奋斗。
20. Signing the contract will nail down their agreement.
    签署合同将使他们的协议肯定下来。
21. They couldn't nail down numbers for private-equity firms, hedge funds and other money-management outfits but concluded that their ranks and compensation had grown dramatically.
    他们虽然无法弄清私人股本公司、对冲基金和其他资产管理机构的相关数字，但断定其阵容和报酬已大幅增长。
22. Why is it considered necessary to nail down the lid of a coffin?
    为什么非要用钉子把棺材的盖子钉住？
23. "Law of contract" in the286~ ( th) substantively stipulates the construction project priority, but this stipulation doesn t nail down the quality of this right.
    《合同法》第286条实质上规定的是建设工程优先权的内容，但该条规定并未明确其权利的性质。
24. He stayed another week, trying to nail down train tickets beyond Kuibyshev.
    他又呆了一个星期，设法弄到比古比雪夫更远的火车票。
25. Signing the contract will nail down our agreement.
    在合同上签字将使我们的协议成为定案。
26. One is that the mainstream media are inexorably being dragged toward the Twitter, or news agency, model of constantly publishing and updating information, and away from the traditional approach of waiting for a while to nail down what is clearly true.
    一是主流媒体被无情地拉向Twitter或连续发布和更新信息的典范&新闻通讯社，而告别等待一段时间以确认事实的传统方式。
27. To nail down the aim of a class is the premise of merging setting-up and producing, to design elastic teaching procedure is the assurance, and to control a class smartly is the linchpin.
    设计弹性教学方案是预设和生成“相融共荣”的保证。灵活驾驭课堂是预设和生成“相融共荣”的关键。
28. The goal is to work out all the unknowns and nail down all the details before the first line of code is written.
    目的就是为了在第一行代码写下前，将所有不明确的东西明确并细化下来。
29. It take the negotiator ten hour to nail down a deal
    参加协商的人花了十个小时才敲定一桩生意

verb

1. make final
   1. let's finalize the proposal

   Synonym:    finalizefinalisesettle

2. define clearly
   1. I cannot narrow down the rules for this game

   Synonym:    pin downpeg downnarrow downnarrowspecify

3. succeed in obtaining a position
   1. He nailed down a spot at Harvard

   Synonym:    nailpeg