noun ダウンロード 🔗共有 蚕 Any of various caterpillars of moths that produce silk cocoons, especially Bombyx mori, the source of most commercial silk. Examples : "The children learned about silkworms and how they make silk in their science class. " 子供たちは理科の授業で蚕と、蚕がどのように絹を作るのかを学びました。 animal insect biology agriculture material industry science AIとチャット語彙ゲーム読解練習