File Urls
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{"id":2384,"type":"audio","url":"https://tiengtrunghoanam.easyedu.vn/sites/default/files/easyschool/upload/2025/06/di_19ke_.mp3","width":null,"height":null,"thumbnail":"https://tiengtrunghoanam.easyedu.vn/sites/all/themes/easyedu/images/audio-large.png"}
Lecture Type
Giáo trình
code
BOYA QUYỂN 1