球面几何 Traditional 球面幾何 qiú miàn jǐ hé 🔊 spherical geometry + Keep this word Meanings qiú miàn jǐ hé 球面幾何 spherical geometry Its characters 球qiúballHSK 2面miànfaceHSK 2几jǐhow many (a few)HSK 1何héwhat