noun ダウンロード 🔗共有 魚竜 Any of several fishlike marine reptiles of the extinct order Ichthyosauria of the early Triassic to the late Cretaceous period, that had a body somewhat like a porpoise. Examples : "Scientists study fossils of ichthyosaurs to learn about marine life millions of years ago. " 科学者たちは、何百万年も前の海洋生物について学ぶために、魚竜の化石を研究しています。 animal biology ocean history nature geology AIとチャット語彙ゲーム読解練習