adjective ダウンロード 🔗共有 樫の, オークの Made from the wood of the oak tree. Also in metaphorical uses, suggesting robustness. Examples : "The heavy, oaken door creaked open as I entered the old library. " 古い図書館に入ると、重い樫のドアがギイと音を立てて開いた。 material nature quality AIとチャット語彙ゲーム読解練習