Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
이 나무는 석화하는 과정에서 아름다운 형태를 가지고 있다.i namuneun seokhwa-haneun gwajeongeseo areumdawoon hyeongtaereul gajigo itda.This tree has a beautiful shape during the petrifactive process.