mother-of-pearl
柯林斯詞典
1. N-UNCOUNT Mother-of-pearl is the shiny layer on the inside of some shells. It is used to make buttons or to decorate things. 珠母層
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1. N-UNCOUNT Mother-of-pearl is the shiny layer on the inside of some shells. It is used to make buttons or to decorate things. 珠母層