Twins speaking their own set of language

Have you ever heard that almost each set of multiples has their own set of language that is difficult for others to understand? Ah, it's nothing else but true-at least to this pair: Li Yanshuo and Li Yanlei.

It' also said that language development in twins or multiples is often delayed or different from singleton peers. That' another true fact. These two boys are nearly 3 years old, but according to their mother, they can only speak a few words clearly. However, there were no communicating problems between the little brothers at all. Sometimes mom failed to figure out what one of the twins were talking about, she would turn to the other, but, hah, she could only have "he other" repeat the former one's talking and nothing could ever be figured out. Isn't it interesting? Yeah! But be careful, mom, maybe it's time for you to do something about this, separate them apart from time to time and pay more concerns to their individuality building.