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
물질성은 물체의 존재를 설명하는 중요한 개념입니다.Muljilseong-eun mulche-ui jonjae-reul seolmyeonghaneun jungyohan gaenyeom-imnida.Corporeity is an important concept that explains the existence of objects.