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Study Music,Concentration Music,Focus Music,Meditation,Relax Music,Alpha Waves,Study,☯3696-المدة:11ساعةو55دقيقة.

249webm音频只有小111k opus@50k(48000Hz)262.91Mi B 250webm音频只有128k opus@70k(48000Hz)350.34Mi B140m4a音频只有小171k m4a_dash容器mp4a.40.2@128k(44100Hz)662.13mi B 251webm音频只有192k opus@160k(48000Hz)688.72Mi B 160mp4256x144p248k avc1.4d400c30fps视频只有461.65mi 278webm256x144144144p347k webm容器vp930fps视频 133mp426x240p487k avc1.4d401530fps视频只有1.19gi 242webm426x240p492k vp930fps视频只有894.37mi B 243webm640x360360p683k vp930fps视频只有1.77gi 134mp4640x360360p972k avc1.4d401e30fps视频只有2.65gi 244webm854x480480p1112k vp930fps视频只有3.32gi 135mp4854x480480p1670k avc1.4d401f30fps视频只有4.88gi 247webm1280x720720p2663k vp930fps视频只有8.26Gi B 136mp41280x720p3232k avc1.4d401f30fps视频只有10.47gi 248webm1920x1080p4070kvp930fps视频只有14.15GiB137mp41920x1080p5893k avc1.64002830fps视频只有20.68gi 18mp4640x360360p627k avc1.42001E30fps mp4a.40.2@96k(44100Hz)3.13Gi B 22mp41280x720p2224k avc1.64001F30fps mp4a.40.2@192k(44100Hz)(最佳)