subtr act的解释v.减去,扣掉,减少subtr act的例句Ifyousubtr act2from8,youget6.8减去2是6。Aftersubtr actingfoodandenergycosts,whichcanvarywidelyeachmonth,theProducerPriceIndexforFinishedGoodsstillroseatamoderatelyfastclipoffour-tenthsof1percent,comparedwithatwo-tenthrisesinApril.减去食物与能源的费用以后——这两项每月可能大幅变动——成品制造价格指数仍以略快的速度攀升百分零点四,相形之下,四月份仅上升零点二。