| 单词 | 中生代 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Mesozoic〕The Mesozoic Era.中生代美国传统〔ammonite〕The coiled, flat, chambered fossil shell of an extinct mollusk belonging to the class Cephalopoda, which was abundant in the Cretaceous period.菊石，鹦鹉螺化石：已灭绝软体动物的螺旋形、扁平的化石外壳，属头足纲动物，大量存在于中生代美国传统〔era〕The Mesozoic era中生代外研社新世纪〔plesiosaur〕A large extinct marine reptile having paddlelike limbs that was common in Europe and North America during the Mesozoic Era.蛇颈龙属：常见于欧洲和北美洲中生代，有桨状肢已灭绝的一种大型海洋爬行动物美国传统〔sauropterygian〕Any of various extinct aquatic reptiles of the superorder Sauropterygia that flourished during the Mesozoic Era and included the plesiosaurs.鳍龙：各种在中生代时期大量繁殖的鳍龙亚目已灭绝水生爬行动物，包括蛇颈龙美国传统 |
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