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
전염병이 퍼지면 많은 사람들이 아플 수 있습니다.jeonyeombyeongi peojimyeon manheun saramdeuri apeul su issseumnida.If a contagious disease spreads, many people can get sick.