蔬菜价格一项就上升了62个百分点。
在美国，这种习俗已经制度化：人们把它看成是一项服务的认可价格的一部分。
In America, the custom has become institutionalized: it is regarded as part of the accepted cost of a service.
依照传统的经验法则，如果能源价格保持在现有水平，单此一项便会导致消费支出增幅减少1.5个百分点。
Traditional rules of thumb would suggest that, if current levels are maintained, energy prices alone will drain as much as 1.5 percentage points from consumer spending.
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