单词	acid-free
释义	acid-freeˈacid-free adjective acid-free paper and paper products do not contain acid:  Store precious photographs and documents between sheets of acid-free paper.
随便看	spread bet spread betting spreadeagled spreadsheet spree sprig sprigged sprightliness sprightly spring Spring Bank Holiday springboard springbok spring break spring chicken spring-clean spring-cleaning Springer, Jerry spring fever springily springiness barbarity barbarous barbarously barbecue

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