pin down
释义
把…固定住；使动弹不得；迫使作出决定；采取行动
英英释义
pin down
v.
define clearly
同义词：peg downnail downnarrow downnarrowspecify
attach with or as if with a pin
同义词：pin up
双语例句
You must pin down every quotation to its author.
你一定要确定每一个引文的作者是谁。
All work must answer the specifications laid down.
全部工作必须符合确定的规格。
The speaker faces his opponent down.
演讲者用目光压住了对手。
The robbers weighted the box down with stones and dropped it into the river.
盗贼们用石头压住箱子，把它沉到河里去了。
权威例句
Russell LissackDavid Bowie - mp3 download, lodger, never let me down
Noncommutativity Error Analysis of Strapdown Inertial Navigation System under the Vibration in UAVs
Holographic fermions in charged Gauss-Bonnet black hole
On the convexity for the expected total cost per unit time of the EPQ model with scrap, rework and stochastic machine breakdown
Security recognition system
The kinase inhibitor indirubin-3′-oxime prevents germinal vesicle breakdown and reduces parthenogenetic development of pig oocytes
Inheritance and stability of sodium channel mutations associated with permethrin knockdown resistance in Aedes aegypti
MMP-11 expression in oral cancer cell lines and the MMP-11 knockdown in SCC9 cells reduce cell migration.
Circuit and method for soft start from a residual voltage
1. The cause of the disease is difficult to pin down precisely.
病因目前还难以解释清楚。
《牛津词典》
2. It has taken until now to pin down its exact location.
一直到现在才确定了它的准确位置。
《柯林斯英汉双解大词典》
3. He set out with an apparently simple aim: to pin down the precise meaning of the concept of "information".
他的出发点显然很简单：确定“信息”这个概念的确切含义。
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4. Inspired by Halley's suggestion of a way to pin down the scale of the Solar System, teams of British and French astronomers set out on expeditions to places as diverse as India and Siberia.
受哈雷提出的确定太阳系大小的方法启发，英国和法国天文学家团队开始在印度和西伯利亚等地考察。
youdao
5. I almost knocked the bowling pin down.
我几乎要把这堆保龄球瓶打倒了。
youdao
6. You must pin down every quotation to its author.
你一定要确定每一条引文的作者是谁。
youdao
7. 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。
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8. 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。
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9. The talks also will pin down the cost of spare parts, training rounds, training courses, delivery dates, documentation and other details.
会谈也将牵涉到备件的成本，训练弹，培训课程，交付日期，文件和其他的细节。
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10. Some expect Apple and Microsoft to Sue Google. Yet this is unlikely, because the online giant will be hard to pin down.
有些人期待苹果和微软起诉谷歌，然而这是不太可能的事情，因为谷歌这个网络巨人是很难被扳倒的。
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11. This is to pin down dark matter and dark energy-the 95% of the universe the Standard Model doesn't explain.
这场较量的目的是理解暗物质和暗能量——在宇宙中占95%却无法用标准模型解释。
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12. All carbon footprints are hard or impossible to pin down accurately, but the Internet is a particularly complex case.
所有的碳足迹都很难或者不太可能精确地算出来，对于互联网，情况更是复杂。
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13. If his identity is hard to pin down, his fears and hopes are easier to read.
假如他的身份很难确定，那他的担心和希望还是更容易弄懂一些。
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14. 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。
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15. If they can pin down the relationship between age and rotation, a star's age will be much easier to measure.
如果他们能够确定星星年龄与转速之间的关系，星星的年龄测起来就简单的多了。
youdao
16. Culture is a difficult concept to pin down.
文化是一个非常难讲清楚的概念。
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17. Such models may also help to pin down the causes of diseases that arise from the interplay of genetic and environmental factors.
这种模型也许能有助于发现基因与环境因素相互作用而引起的疾病的根本原因。
youdao
18. But it is always hard to pin down.
但这始终是难以确切说明。
youdao
19. Knowing that there is a problem does not necessarily help to pin down what it is.
要知道仅仅解决一个问题并不能确切地说明问题的所在。
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20. Using neutrons to better understand food is a new field but is ideal to pin down sub-nanoscale detail in molecules, says Teixeira.
将中子应用到食品研究中是一个新的领域，但要得到相应分子的亚纳米级信息还需时日，特谢拉说。
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21. This exhibition promises not just to celebrate the work of an important artist, but to pin down an elusive figure.
这次的展览绝对不只是歌颂一位颇具影响力的艺术家的成就，更是要揭开他的神秘面纱，确立他的形象。
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22. Given a matching index, a single index fetch will pin down the row to be retrieved.
给定一个匹配的索引，通过一个单独的取索引操作就可以得到要检索的行。
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23. 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。
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24. After all, being honest or dishonest involves a set of cognitive and social factors which may prove too complex to pin down.
毕竟诚实与不诚实所涉及的可能是太复杂而难以确定的一系列认知和社会因素。
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25. The ultimate balance between jobs created and killed is difficult to pin down, but the net result is far murkier than it might seem.
增加就业和降低就业很难保持完全平衡，但是结果远不是像看上去的那样清晰。
youdao
26. The ultimate balance between jobs created and killed is difficult to pin down, but the net result is far murkier than it might seem.
增加就业和降低就业很难保持完全平衡，但是结果远不是像看上去的那样清晰。
youdao
pin down
