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
국제 사회는 공조를 통해 문제를 해결해야 한다.gukje sahoe-neun gongjo-reul tonghae munje-reul haegyeolhaeya handa.The international community must solve problems through mutual assistance.