an intresting thing

Some thinges are intresting about us during our life. Some things are intresting for a short time,though. In these days, the intresting thing in my life is my sister immigration. She's going to immigrate to Canada. She wants to continue her education in Canada and i'm so happy. Unfurtunatly, she can't continue her education in her field. She studies air_space. Irainian haven't been permited to study some fields such as air_space. but she can study another field. Why can't we study some fields? It's a big deal. Can you guess why i'm so happy because of her immigration? The most important reasones is i have only one sister and i always worry about her. but if she goes Canada , i won't be worry about her future.