nước nghèo chờ vắc-xin dài cổ

Poor Countries Wait Long for Vaccines Nước Nghèo Chờ Vắc-xin Dài Cổ Basic Listening Susan Shand The Associated Press reported on this story. Susan Shand adapted it for Learning English. Mario Ritter, Jr. was the editor. (Subtitled by Le Quoc An’s Listening Class)...