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单词 crus 释义 ▪ I. ‖ crus|krs|Pl. crura |krr|.[L. crs, pl. crra, leg.]†1. Geom. A straight line forming one side of a triangle. Obs. rare.a1687H. More Antid. Ath. i. iv. Schol. (1712) 144 All the Crura's EG, EH, EI, EC, are easily demonstrated to be...