芦沟桥事变 lúgōuqiáoshìbiàn Marco Polo Bridge Incident Origin Definitions Defs Strokes Stroke Words Sentences Sents 芦沟桥 蘆溝橋 lúgōuqiáo Lugou Bridge Marco Polo Bridge in southwest of Beijing; scene of the 1937 conflict that began the Second Sino-Japanese War against Japan.事变 事變 shìbiàn incident A sudden, major political or military event of historical significance; an emergency or exigency