It is being examined by a scientist." is being "不懂啊,求高手讲解为什么

he became famous for being a scientist.里面的being怎么解释啊?不懂bedin I think being a volunteer is helpful to people.为什么用 being请高手 为什么it is not easy being a teenager,用being 而不用to be a teenage It is being repaired. Is that being a cat中为什么要用being It is now being sent to his home by train.这句话里为什么要加being?能不能 it is called being a father It is being repaired by a friend of my father's 求翻译 请问这里的bei your being is my being求翻译! It is now being sent to his home by train ,这里being什么用法 It is being repaired by a friend of my father's. It is being repaired by a friend of my father's