此后铜价格不合理的上涨证明赌的好。
The steep increase in copper prices since then has proved that the bet was a good one.
火车运营商如何证明火车票价又一次上涨的合理性？
How can the train operators possibly justify yet another increase to rail passenger fares?
如果你进行长线投资，存在股权偏好是合理的，那么从长期看，股票是上涨的。
If you're investing with a long time horizon, having an equity bias makes sense, stocks go up in the long run.
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