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
이 개정기는 중요한 법률을 수정하는 데 사용됩니다.i gaejunggi-neun jungyohan beobryul-eul sujeonghaneun de sayongdoemnida.This revision period is used to amend important laws.