[과학 | 철학] 백두산 - 지질학의 미스터리2021.01.08 AM 02:06
URL : //mypi.ruliweb.com/m/mypi.htm?nid=2250221&num=20624
Why China's Largest Volcano Is So Unusual by DeepDive 번역 영상
https://youtu.be/3C2HVOB-g5s