慶?？铸埌l(fā)現(xiàn)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.

兩個世紀(jì)前，一個發(fā)現(xiàn)改變了我們對自然世界的理解。（剩余2618字）