BÀI 2:Để chìa khóa cho ba mẹ

{"id":1572,"type":"audio","url":"https://tiengtrunghoanam.easyedu.vn/sites/default/files/easyschool/upload/2025/04/02-1_1.mp3","width":null,"height":null,"thumbnail":"https://tiengtrunghoanam.easyedu.vn/sites/all/themes/easyedu/images/audio-large.png"}

{"id":1573,"type":"audio","url":"https://tiengtrunghoanam.easyedu.vn/sites/default/files/easyschool/upload/2025/04/02-2_1.mp3","width":null,"height":null,"thumbnail":"https://tiengtrunghoanam.easyedu.vn/sites/all/themes/easyedu/images/audio-large.png"}

{"id":1574,"type":"audio","url":"https://tiengtrunghoanam.easyedu.vn/sites/default/files/easyschool/upload/2025/04/02-1_2.mp3","width":null,"height":null,"thumbnail":"https://tiengtrunghoanam.easyedu.vn/sites/all/themes/easyedu/images/audio-large.png"}

{"id":1575,"type":"audio","url":"https://tiengtrunghoanam.easyedu.vn/sites/default/files/easyschool/upload/2025/04/02-2_2.mp3","width":null,"height":null,"thumbnail":"https://tiengtrunghoanam.easyedu.vn/sites/all/themes/easyedu/images/audio-large.png"}

{"id":1576,"type":"document","url":"https://tiengtrunghoanam.easyedu.vn/sites/default/files/easyschool/upload/2025/04/hsk5_-_bai_2_0.pptx","width":null,"height":null,"thumbnail":"https://tiengtrunghoanam.easyedu.vn/sites/all/themes/easyedu/images/powerpoint-large.png"}