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
체카는 러시아 혁명 후에 설립된 비밀 경찰이었습니다.Cheka-neun Reosia hyeogmyeong hue seollipdoen bimil gyeongchal-i-eossseubnida.The Cheka was the secret police established after the Russian Revolution.