但空气在接近裂缝的时候速度会越来越快，杰弗里·兰迪斯说，他是美国宇航局在克利夫兰·格伦研究中心的一位物理学家。

But air picks up speed as it approaches a fissure, said Geoffrey Landis, a physicist at NASA's Glenn Research Center in Cleveland.

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“杰夫·萨克斯说必须给每个穷人都发一床蚊帐，我赞成——但实际上大部分人根本收不到，”她说，“另外我并不是活在一个只会说“应该这样，应该那样”的世界里。”

"When Jeff Sachs says every poor person should receive a free bed net, I agree-but in reality many end up not receiving one," she says. "And I don't live in a world of shoulds."

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