eggshell
/ˈeɡʃel/
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21673
An eggshell is the hard covering on the outside of an egg. 蛋壳
noun [专属名词] 蛋壳；薄而易碎的东西
Over time, the protein in the eggshell breaks down into its constituent amino acids. 随着时间的推移,蛋壳中的蛋白质分解成其构成成分氨基酸。
