- snowball earthの例文
例文
携帯版
- -- Snowball Earth : The Story of the Great Global Catastrophe That Spawned Life as We Know It, by Gabrielle Walker.
- -- Snowball Earth : The Story of the Great Global Catastrophe That Spawned Life as We Know It, by Gabat http : / / www . gps . caltech . edu / users / jkirschvink / pdfs / firstsnowball . pdf