Divers in Sawmill Sink on Abaco Island found the three-thousand-year-old remains of a Cuban crocodile.

VOA: special.2010.11.10

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？

麻省理工公开课 - 固态化学导论课程节选

He says another three African nationals are still missing and their status remains unknown.

VOA: standard.2009.09.01