noun ダウンロード 🔗共有 微生物 An organism that is too small to be seen by the unaided eye, especially a single-celled organism, such as a bacterium. Examples : "The cud is then reswallowed and further digested by specialized microorganisms that live in the rumen." その後、反芻物は再び飲み込まれ、ルーメンに生息する特殊な微生物によってさらに消化されます。 organism microorganism biology science AIとチャット語彙ゲーム読解練習