地動説 (ちどうせつ) — heliocentric theory; Copernican theory; heliocentrism; heliocentricism
地動説
ち ど う せ つ
Heliocentric theory; Copernican theory; heliocentrism; heliocentricism
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地動説 (ちどうせつ) — heliocentric theory; Copernican theory; heliocentrism; heliocentricism
