On the rug, a little boy about two and a half years old sat quietly, building a block house. After placing a few blocks, he would glance at Lin Wan.,The child, An An, was quiet and didn't speak. But her big eyes clearly showed her joy, and she became even more focused on building her block house.,Lin Wan finished speaking, confirmed that the child had no adverse reactions, and then walked out of the room with He Minmin.。