量变引起质变，所有这些合理的问题堆积起来就会达到失去工作的关键量。
All of these reasonable issues can add up to a critical amount of lost work.
这里的根本观点是关于幸福指数的数学问题，想象生命垂危之时，将生命中的所有快乐累积成美好回忆，痛楚堆积成遗憾记忆。
The underlying idea here is that there is a kind of mathematics of happiness.
堆积更多债务似乎不是解决问题的办法。
问题在于这些利润可能建立在堆积如山的坏账上。
The snag is that these profits may be built on a mountain of bad debt.
问题在于这些利润可能建立在堆积如山的坏账上。
The snag is that these profits may be built on a mountain of bad debt.
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