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 farmer raised silkworms to sell their silk cocoons to a textile company. " 農家は、繊維会社に絹の繭を売るために蚕を育てました。 animal insect biology organism nature agriculture industry material AIとチャット語彙ゲーム読解練習