That laughter seemed to say: "Come on, XiXi, come here quickly! Let's climb together. Climbing is so much fun! Come with me…",At this time, the two little ones can also utter simple syllables, such as "pa—pa", "ma—ma", "yi—yi", "da—da", "ei—ei". They are not particularly clear and accurate, but the first two sound like "Dad" and "Mom", which delighted the adults at home. They were very persistent and would seize any opportunity to sit their little ones in front of them and try hard to coax them to call themselves.,"Come, XiXi, this is a gift for you to play with."。