Complex sentence: In September 1997, Zhou started his third marriage with Guo Hong (Chinese: 郭红), who was twenty years younger than him, together they had his second daughter Jiujiu (Chinese: 啾啾).
Split into simpler sentences: In September 1997, Zhou started his third marriage with Guo Hong (Chinese: 郭红), who was twenty years younger than him. Together they had his second daughter Jiujiu (Chinese: 啾啾).