During the ”snowball Earth” period about 700m years ago, Earth’s climate shut down. The planet was encased in ice and insulated from seasonal variations: spring, summer, autumn and winter all stopped. Or at least that was the theory.
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Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36，详情可参考WPS下载最新地址