noun 下载 🔗分享 衬里, 精装衬页. An elaborately decorated leather flyleaf in a book. Examples : "The rare book's doublure, embossed with gold leaves and inlaid mother-of-pearl, was more beautiful than the printed pages themselves. " 这本珍本书的精装衬页，压印着金箔叶子，还镶嵌着珍珠母贝，甚至比书页本身还要精美。 literature art style material 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 内缘，内褶缘. The reflexed margin of a trilobite carapace. Examples : "The paleontologist carefully examined the doublure, the inward-turned edge, of the fossilized trilobite's shell. " 古生物学家仔细检查了化石三叶虫外壳的内缘（内褶缘），也就是它向内弯曲的边缘。 geology animal biology anatomy part structure organism 与AI对话词汇游戏阅读练习
