But it is always hard to pin down.
但这始终是难以确切说明。
SAUDI ARABIA is hard to pin down.
要给沙特阿拉伯定位是困难的。
Mr Obama's views are hard to pin down.
奥巴马先生的观点则很难确定。
A trader's intent is hard to pin down, however.
然而，交易商的意向是很难被抑制的。
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。
Yet this is unlikely, because the online giant will be hard to pin down.
这种可能性基本不存在，毕竟网络红人难以击败。
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。
Indeed, the very number of transgender people in the country and the state is hard to pin down.
的确，在整个国家或一个州内变性人的数字很难确定。
It's hard to pin down exactly when chocolate was born, but it's clear that it was cherished from the start.
我们很难确定巧克力诞生的确切年代，但有一点是很明确的，那就是自诞生之初，巧克力就一直备受珍爱。
The effects have been hard to pin down because studies of different groups have produced conflicting results.
但是由于不同的研究小组总是得出矛盾的结论，所以一直没有确定。
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。
For something so influential and intuitively appealing, it turns out that the Hawthorne effect is remarkably hard to pin down.
作为一个如此具有影响力以及从直觉上引人入胜的理论，“Hawthorne ”效应却显得异常难以证实。
In the Han Dynasty (206bc — 220ad), "Lari" fell on the day three weeks after Winter Solstice, which was actually hard to pin down or remember.
汉代，确定冬至后的第三个戌日为“腊日”，不过具体日期还是很难计算，也不好记。
Death estimates are hard to pin down - initial reports placed the toll at nearly 700,000, but those have since been revised down to some 250,000.
死亡人数很难确认，初始报告称死亡人数在70万，但是随后死亡人数被重新修改成25万人。
Brummel is credited in some quarters with inventing modern trousers, a garment more widespread even than the suit and with a provenance equally hard to pin down.
人们把发明现代裤子的功劳部分归功于浦鲁马。裤子比西装流行的范围更广，出处也更加难寻。
Precise figures are hard to pin down because publication planning is widely dispersed and is only beginning to be recognized as something like a discrete profession.
由于选题策划人员分布广泛、离散性强，所以很难给出一个精确的在行从业数字。
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。
No matter how you look at it, it's hard to pin these down.
不管怎么看，这些问题都是很难弄清楚的。
There are many other chemotherapy agents and it's hard for us to pin them down as to which ones are going to have neurocognitive difficulties.
还有许多其他的化疗药物，而且我们很难确定哪种药物会引起神经认知困难。
Hard as it is to pin that down, there's something to it.
尽管很难，但还是要那样子做一做。
No matter how hard you try to pin down an unfiltered experience of breathing, you still find it shaped by your idea of what breathing actually is.
无论你作多少努力，试图确定未经过滤的呼吸体验，你还是发现，它成型于你对呼吸究竟是什么这个观念。
No matter how hard you try to pin down an unfiltered experience of breathing, you still find it shaped by your idea of what breathing actually is.
无论你作多少努力，试图确定未经过滤的呼吸体验，你还是发现，它成型于你对呼吸究竟是什么这个观念。
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