pin down

基本解释把…固定住； 使动弹不得；迫使作出决定； 采取行动

网络释义

1. 约束 控制
2. 牵制
3. 困
4. 使受约束
5. 阻止
6. 下结论
7. 犄

用法和例句

Other after-effects may be equally hard to pin down .
其他的后续影响可能很难被确定。
Anonymous and lulzsec pose a problem for law enforcement partly because their membership and operations are difficult to pin down .
“匿名者”和lulzsec成为执法部门的一个难题，部分原因是他们的成员和业务难以确定。
Our solders knew how to pin down enemies .
我们的战士知道如何牵制敌人。
This is hard to pin down because we do not know the true scale of the mess our banks are in .
很难说出个具体数字，因为我们不知道银行所处困境的真实规模。
We have been trying to pin down by experiments what people mean by these expressions in specific contexts and how the meanings change with age .
我们一直在试图通过实验说明，在各种特定的语言环境下人们使用上述词语表达了什么样的意义，这些意义怎样随年龄的不同而变化。
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。
The origin of this singular skill was a turning point in our history yet the timing is extremely difficult to pin down .
语言这一奇特技能的出现是我们的历史转折点，但具体出现的时间却很难确定。
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。
He 's really difficult to pin down -- you 'll have to be persistent .
让他明确表态很难--你必须坚持。
The police tried to pin down the blame for the fire in the school .
警察设法把学校失火的责任搞清楚。

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