It is incredibly difficult to calculate how much dead stock currently goes to waste.

要计算目前有多少滞销库存将被浪费是极其困难的。

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Nuclear waste is difficult to dispose of.

不过那里的确有好的原因引起公众的担忧：核废料是很难处理的；

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If you're facing a tough and difficult situation, don't let it exhaust you to the point where all your efforts actually prolong the problem and waste your resources.

如果你正面临焦灼的局面，而你花上所有精力来解决问题的方式只是拖延时间的话，这个时候你就该向别人求助或后退几步想清楚，换一种看问题的方式。

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The respondents' next-most common reasons were that they don't have a computer or that it's too expensive, too difficult, or a waste of time.

CNN: Why one in five U.S. adults doesn't use the Internet

Looking at waste disposal inside the European Union is slightly difficult.

FORBES: Despite NPR, No, Burning Trash Is Not Profitable