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以往人们一直认为,炖骨头汤时应加入适量食醋,以利于无机元素的逸出,然而最新研究资料表明的结果正好相反.
In the past people always think that stew bone soup should be added appropriate amount of vinegar, in order to facilitate the escape of inorganic elements, but the latest research shows that the opposite results.