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词汇 perigee
词根词缀 词源:
"point at which a celestial body is nearest the Earth," 1594, from Mod.L. perigeum (15c.), from Late Gk. peregeion, used by Ptolemy as a noun, properly neut. of adj. perigeios "near the earth," from peri ges, from peri "near" + ges, gen. of ge "earth."
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更新时间:2025/1/10 9:48:53