鼎立dǐnglì三方面的势力对立(像鼎的三条腿){confrontation of three forces (like the three legs of a tripod); tripartite confrontation; tripartite balance of forces}: 赤壁之战决定了魏、蜀、吴三国～的局面。{The Battle of Chibi determined the tripartite balance of power of the three kingdoms of Wei, Shu and Wu.}