noun ダウンロード 🔗共有 環境、周囲の世界 One's surroundings or environment; the outer world as perceived by organisms within it. Examples : "A dog's umwelt is filled with smells that we humans can't even imagine. " 犬の周囲の世界は、私たち人間には想像もできない匂いで満たされています。 environment biology philosophy ecology organism nature sensation AIとチャット語彙ゲーム読解練習