Going on a long journey ===

When Lu Xuan walked into the living room of the villa, he saw Ning Doudou sitting on the floor playing with toys in her hands. Lu Xuan's eyes suddenly lit up. Little Doudou could sit! Lu Xuan walked over with great joy, and Aunt Zhou, who was accompanying Ning Doudou, looked at his surprised eyes and said with a smile: "Mr. Lu, during the few days you were away from home, Xiao Doudou learned to sit up. Look, he sits so steadily." Ning Doudou is now almost 7 months old, just about to learn to sit...