九一八事变jiǔ yī bā shì biàn释义the Mukden or Manchurian Railway Incident of 18th September 1931 used by the Japanese as a pretext to annex Manchuriaalso known as Liutiaogou incident 柳條溝事變|柳条沟事变单字详解九jiu一yi八ba事shi变bian