Lú gōu Qiáo Shì biàn卢沟桥事变Marco Polo Bridge Incident of 1937Frequency 2.3MeaningsMarco Polo Bridge Incident of 7th July 1937, regarded as the beginning of the Second Sino-Japanese War 抗日戰爭|抗日战争[Kang4 Ri4 Zhan4zheng1]