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.
这是一场极具诱惑力的商业推演，但现实的漩涡往往比推演沉重。。业内人士推荐safew官方下载作为进阶阅读
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Terms & Conditions apply，这一点在91视频中也有详细论述