恐龙的英语（秒记一个单词（第个）dinosaur）
dinosaur /?da?n?s??(r)/ n. 恐龙
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Tommy-录制dinosaur.mp30:54来自Tommy教你说美语
例句/词组:
How did dinosaurs become extinct?
恐龙是如何灭绝的？
英语解释：
an animal that lived millions of years ago but is now extinct. There were many types of dinosaurs, some of which were very large.
? 恐龙
