The wrong yes can mean pouring valuable time and money into a certain direction that ends up draining resources with little return.
一个错误的决定将意味着，把所有有价值的时间和金钱投入到一个特定的方向，但是结果却是颗粒无收。
Progress is so slow, the issue is not so much when America will return to full employment but what "full employment" will mean by the time it does.
这方面的进展非常缓慢，在很大程度上，目前不在于美国何时回归充分就业，而在于“充分就业”出现时将意味着什么。
Mean reversion is a tendency for a stochastic process to remain near, or tend to return over time to a long-run average value.
均值回归是指随着时间的向前推进，一个随机过程向其均值靠近的趋势。
Mean reversion is a tendency for a stochastic process to remain near, or tend to return over time to a long-run average value.
均值回归是指随着时间的向前推进，一个随机过程向其均值靠近的趋势。
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