(math.) geometric topology
1.projective geometry2.same as 射影几何学
1.analytic geometry2.coordinate geometry
里瓦几亚条约里瓦幾亞條約 Treaty of Livadia (1879) between Russia and China, relating to territory in Chinese Turkistan, renegotiated in 1881 (Treaty of St. Petersburg)
1.(literary) similar; almost2.(literary) if only; it is to be hoped that3.(literary) maybe; perhaps