<p>Bài 14 + 15</p>
File Urls
{"id":170,"type":"video","url":"https://gct.easyedu.vn/sites/default/files/easyschool/upload/2026/08/bai_15_0.mp4","width":2160,"height":1080,"thumbnail":"https://gct.easyedu.vn/sites/default/files/easyschool/upload/2026/08/e6e38336-f50d-4f36-8d5f-dc165bf42a35.png"}
Lecture Type
Bài học