奥巴马总统在马里兰州布莱登斯堡高中的演讲 Hello, Mustangs! (Applause.) Fantastic. Well, everybody have a seat. Have a seat. Thank you, Leah, for the great introduction. Give Leah a big round of applause. Yay! (Applause.) Meeting young people 英语演讲 2020-09-14 hisen
