By this means the age of the earth had been estimated at several hundred million years.

用这个办法推算出地球的年龄是数亿年.

辞典例句

The geologist theorized brilliantly about the age of the earth.

这地质学家出色地导出有关地球年龄.

互联网

Geologists have calculated the age of the earth.

地质学家已经计算出了地球的年龄.

互联网