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
그의 역행적 사고방식은 문제를 해결하는 데 방해가 된다.geuui yeokhaengjeok sagobangsik-eun munjele haegyeolhaneun de banghaega doenda.His regressive way of thinking hinders solving the problem.