布丽吉特说：“这是好意，但它们很快就会变硬的。”
Brigida remarked: "That is meant well, but they get hard so soon."
然而，研究人员发现，一个长期以来众所周知的使食物变色和变硬的过程也可能与年龄相关的细胞和组织损伤有关。
Nevertheless, researchers have discovered that a process long known to discolor and toughen foods may also contribute to age related impairment of both cells and tissues.
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