Sometimes there are "duplicate" Requests, or a reported problem cannot be reproduced or works as designed.

有时候还有“复制”Requests，或者一个被报告的问题不能像设计的那样被重新产生或者工作。

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And when it’s applied, recycling generally works as designed, turning waste paper into fresh paper or old aluminum cans into new ones.

至少，循环首先是最大限度地利用某物。 那么循环就是把废纸变为新纸或是把旧吕罐变成新铝罐。

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And when it's applied, recycling generally works as designed, turning waste paper into fresh paper or old aluminum cans into new ones.

一般来说，回收按照预计得到实施是可行的，比如把废纸制成崭新的纸张，或者把废旧铝制易拉罐制成新产品。

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The blame does not lie with the doctors, it is our fault for designing an incentive plan that works as designed.

FORBES: How to Heal the Healthcare System

Other factors that contribute to false results are small sample sizes, studies that show weak effects (such as a drug which works only on a small number of patients) and poorly designed studies that allow the researchers to fish among their data until they find some kind of effect, regardless of what they started out trying to prove.

ECONOMIST: Just how reliable are scientific papers?