雙曲幾何 shuāng qū jǐ hé

DEFINITIONS

  1. hyperbolic geometry

CHARACTERS

雙 shuāng set of two, pair, couple; both
曲 qū
HSK 6
crooked, bent; wrong, false
幾 jǐ how many? how much?; a few, some
何 hé
HSK 4
what, why, where, which, how