PSF: In Pine Effect came from material over a couple of years, right?

貌似《松树效应》的创造材料跨越了好几年，是这样么？

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It's not easy material, and deserves to be read slowly and perhaps a couple times - much like any sophisticated treatise on a difficult but powerful subject.

它不是一个简单的阅读材料，值得用双倍的时间来细读品味——就像阅读那些涉及困难但重要主题的专业论文那样。

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A person or creature will do something selfless if the act still saves enough of its own genetic material - say, the amount carried in a couple of brothers or a half-dozen Cousins.

一个人，或一种生物，会做一些无私的事情，只要可以为它保存自身的遗传物质，比如那些存在在几个亲兄弟或者堂兄弟之间的。

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The key change was the addition of copper strips to the metamaterial that shields an object from incoming light to create a better material, couple with a slight change in its orientation to solve a problem caused by dividing the metamaterial of the cloaking device into quadrants.

FORBES: Duke Researchers Perfect The Original Invisibility Cloak

And a comparison between Google Drive's terms and that of other storage services turns up few material differences, except for a couple of questionable terms that may land your content in Google's promotional materials.

CNN: STORY HIGHLIGHTS

Last year, the public prosecution service said the couple would not have been charged if it had been aware of confidential material it has now seen.

BBC: Scales of justice