【温流】这就是那个退出SM公司的练习生说的，每个练习生都必须学习的视频吗？

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VIDEOS
MP4	N/A	480P	Download
MP4	N/A	480P	Download
MP4	N/A	360P	Download
MP4	N/A	360P	Download
AUDIO
MP4	N/A	mp4a.40.2	Download
MP4	N/A	mp4a.40.2	Download
THUMBNAILS
	JPEG	Origin Image	Download