A simplified answer is that he will keep the oil in the ground if its price is expected to rise faster than the interest rate that could be earned on the money obtained from selling the oil.
简单的说，如果产油商估计油价涨幅高于售油所得资金的利息，那么他们就情愿将石油留在地下以待日后开采。
More broadly, however, these economists fear that an excess of ready cash in Europe and Asia is on the rise, which could keep a damper on global growth prospects.
不过，从更广泛的层面看，这些经济学家更担心欧洲和亚洲的现金过剩状况不断加重，这可能令全球经济增长的前景更加黯淡。
Keep your dog safe. Don't leave your dog alone in a car or tied up outside a shop. Dog theft is on the rise, so be careful.
保持你的狗的安全。不要将你的狗独自留在汽车或捆绑在一间店铺外。狗盗窃正在上升，所以要小心。
S. must show progress on deficit reduction by next year to avoid the possibility of a rise in interest rates, which might be needed otherwise to entice global investors to keep buying U.
美联储官员说，美国必须在明年之前显示出在削减赤字上取得了进展，以避免利率上升的可能；
S. must show progress on deficit reduction by next year to avoid the possibility of a rise in interest rates, which might be needed otherwise to entice global investors to keep buying U.
美联储官员说，美国必须在明年之前显示出在削减赤字上取得了进展，以避免利率上升的可能；
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