Many believed the sun revolved around the Earth, with ancient Greek scholar Ptolemy formalizing this "geocentric" model in 150.
许多人相信太阳绕地球旋转，即古希腊学者Ptolemy于公元150年建立的地心说。
Many believed the sun revolved around the Earth, with ancient Greek scholar Ptolemy formalizing this "geocentric" model in 150.
许多人相信太阳绕地球旋转，即古希腊学者Ptolemy于公元150年建立的地心说。
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