If the food situation continues to worsen, entire nations will break down at an ever increasing rate.

如果粮食状况持续恶化，那整个世界将以越来越快的速度崩溃。

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At around age 60, "muscles really start to break down," say Kathryn Starr, an aging researcher, "and because of that, the protein needs of an older adult actually increase."

在60岁左右，“肌肉真的开始分解，”一位研究衰老的研究员凯瑟琳·斯塔尔说，“也正因为如此，老年人对蛋白质的需求实际上增加了。”

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What's interesting about this kind of theorizing is it gives rise to many different combinations that can be quite interesting when you break them down and start to look at them carefully.

这种理论的有趣之处在于它促使许多不同的组合产生，而当你将它们分解并开始仔细观察时就会变得非常有趣。

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"We know that surface use of dispersants decreases the environmental risk to shorelines and organisms at the surface and we know that dispersants break down over weeks rather than remaining for several years as untreated oil might."

VOA: standard.2010.05.18

"Different constituents in that sample will break down at different temperatures and become gas, " said Vasavada.

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Clay, Vasavada said as an example, begins to break down at 530 degrees Fahrenheit (277 degrees Celsius).

MSN: New Mars rover hunts for life by 'cooking' rocks

Seemingly strong people sometimes break down at the slightest bit of pressure.

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