预计标的价格将上涨因而买进某种金融工具，等待涨价后再高价卖出标的的市场人士。
A market player who is confident that share prices will rise and buys a financial instrument with an expectation of selling it at a higher price.
情况不可能一直如此，我们担心的是亚马逊只是在等待对手退出市场，随后涨价。
The concern is that Amazon is merely waiting for rivals to go out of business before raising its prices.
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