| 词汇 | megalodon |
| 释义 | megalodon noun[ C ] uk /ˈmeɡ.əl.ə.dɒn/ us /ˈmeɡ.əl.ə.dɑːn/ a very large shark that existed millions of years ago: （生活在几百万年前的）巨齿鲨 For over 20 million years, a gigantic shark popularly known as megalodon stalked the world's oceans在长达2000多万年的时间里，一种被称为巨齿鲨的巨型鲨鱼游弋在世界各地的海洋中。 Some megalodon teeth were over 7 inches long.一些巨齿鲨的牙齿长度超过7英寸。 A full-grown megalodon could be up to 54 feet long. Our understanding of megalodon comes mainly from its teeth. Japan and North America have yielded megalodon backbones as well. Marine mammals beluga cetacean dolphin dugong elephant seal grey seal harp seal humpback whale killer whale manatee narwhal orca porpoise ringed seal sea cow seal walrus whale white whale |
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