Spented twice time as much as any previous one, Scientists researched the so-called "extincted events" which has happened on earth over the past 5 billion years.
科学家研究了过去5亿年间地球上发生的所谓的“灭绝事件”，时间跨度是先前任何一项研究的两倍。
Spented twice time as much as any previous one, Scientists researched the so-called "extincted events" which has happened on earth over the past 5 billion years.
科学家研究了过去5亿年间地球上发生的所谓的“灭绝事件”，时间跨度是先前任何一项研究的两倍。
应用推荐