Okay, so you know how in some countries there are different groups of people who have their own way of living, dressing, and eating? Like in the United States, there are different states and some people in each state may have different culture, language, or food. Similarly, in Mongolia and Tibet, there are different groups of people who have their own unique culture, traditions, and history.
A cultural center is a place where people can learn, see, or experience different aspects of a culture. So, a Mongolian and Tibetan cultural center would be a place where people can go to learn about the culture, history, art, music, dance, and food of the Mongolian and Tibetan people.
The center may have exhibits, artifacts, and pictures to show what their countries look like, what the people wear, what they eat, and how they live. They may have a library with books and movies about Mongolian and Tibetan history and culture. They may have workshops where people can learn how to make traditional Mongolian and Tibetan arts and crafts or try out their food.
In short, a Mongolian and Tibetan cultural center is a place where people can go to learn and appreciate the rich culture and heritage of these two countries.