Professor Sereno received fossilized remains of the creature three years ago from a private collector in the American state of Massachusetts.
VOA: special.2009.10.13
Lithium has three electrons. If it loses two one remains. What is this formula telling us?
锂原子有三个电子,如果它失去两个,剩下一个,那么这个式子告诉了我们什么?
Divers in Sawmill Sink on Abaco Island found the three-thousand-year-old remains of a Cuban crocodile.
VOA: special.2010.11.10
应用推荐