And stick-to-it-iveness. The fear of failure, more than anything else, holds people back.
失败的恐惧，比其它因素更能让人踟蹰不前。
Researchers have a couple of explanations. One holds that people care more about relative wealth than absolute wealth.
研究者的有两种解释，一种观点认为比起绝对财富，人们更加关心相对财富。
The old adage recommending "eight glasses of water a day" still holds to some extent — but people need more than this, some doctors say.
老人的建议：“一天八杯水”在某种程度上还是适用的——有些医生说人们需要的饮水量远多于此。
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