奥巴马每周电视讲话:总统呼吁帮助美国的莘莘学子 Hi, everybody. 大家好! This is commencement season, a time for graduates and their families to celebrate one of the greatest achievements of a young person's life. 又到一年毕业季,毕业生和他们的家长一起庆祝一个年轻人一生中最重要的时刻 英语演讲 2020-09-17 hisen
