What would happen if you drilled through the Earth all the way to the other side and then jumped into the hole? (Engineering, Cambridge)
如果你从地球的一端钻一个洞,穿过地球一直钻到另一端,再从这个洞掉下去,将会发生什么?(剑桥-工程学) )
What would happen if you drilled through the Earth all the way to the other side and then jumped into the hole? (Engineering, Cambridge)
如果你从地球的一端钻一个洞,穿过地球一直钻到另一端,再从这个洞掉下去,将会发生什么?(剑桥-工程学) )
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