庆祝恐龙发现200周年
Two centuries ago， a discovery that would change our understanding of thenatural world was made. In 1824， the first scientifically described dinosaur， theMegalosaurus1， was introduced to the world by William Buckland， a geologist andpaleontologist2.
两个世纪前，一个发现改变了我们对自然世界的理解。（剩余2618字）