noun ダウンロード 🔗共有 片岩 Any of a variety of coarse-grained crystalline metamorphic rocks with a foliated structure that allows easy division into slabs or slates. Examples : "The garden path was made of schist, its layered surface easily splitting into flat stones perfect for walking. " 庭の小道は片岩でできており、その層状の表面は歩くのに最適な平らな石に容易に割れました。 geology material AIとチャット語彙ゲーム読解練習