pin down

相关例句

• But it is always hard to pin down.(但这始终是难以确切说明。)
• 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。)
• 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。)
• 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。)
• 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。)
• The cause of the disease is difficult to pin down precisely.(病因目前还难以解释清楚。)
• 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。)
• Other causes are harder to pin down.(其它原因就很难下定论了。)
• I almost knocked the bowling pin down.(我几乎要把这堆保龄球瓶打倒了。)
• 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。)