They have a particular interest in thejumps in the level of atmospheric oxygen seen about 2.4 billion years ago and 600m years ago.
在24亿年前和60000万前年大气中氧的水平的变化方面,他们有一个特殊的兴趣。
2
While percentage change figures in our ranking are all calculated year-on-year, thejumps in the ranking are explained partly by the two-year gap in reporting.
而在我们的排名中是数据年增长率变动的百分比,排名的变动在一定程度上通过报告两年的数据来作出解释。
3
The longest jumps by a man and a woman were witnessed in Sestriere, Italy, yesterday.