释义 |
pterodactyls ,terə'dæktɪl COCA¹²⁹³³⁴BNC¹¹⁴⁰²⁴⁺⁵Economist⁵³⁵⁸¹⁺¹ 基本例句 n.生翼手龙原型pterodactyl的复数 Pterosaurs, also sometimes referred to as pterodactyls, dominated the skies in the Mesozoic Era,220-65 million years ago. 翼龙又被称为翼手龙,生活在距今22亿年到6亿5千万年前的中生代,它们是天空的统治者。 yeeyan So perhaps the smaller pterodactyls had disappeared because the new kid in town, birds, were out- competing them. 所以也许稍小的翼龙消逝是因为鸟这种新生物在生存竞争中战胜了它们。 gter There, scientists found20 fossilized pterodactyls dating back more than160 million years. 在中国东北地区,科学家们发现了20个有1.6亿多年历史的翼手龙的化石。 hxen Xu suggests that feather evolution may have gotten started in a common ancestor of pterodactyls and dinosaurs— nearly240 million years ago, or some95 million years before Archaeopteryx. 徐星推测,羽毛的进化可能起始于翼手龙和恐龙的某个共同祖先——时间约为2.4亿年前,或始祖鸟出现之前的9500万年前。 yeeyan |