摘要
地球本是一个喧嚣的地方,但新冠肺炎疫情的暴发让地球变得安静起来。这会带来一个什么样的意外之“喜”呢?
Humans are a really noisy species:hammering and digging,flying and driving,delivering heavy cargo all over the world.And those activities create noise as if it were from an earthquake,which masks delicate signals from faraway small earthquakes.
