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
디플레이션은 경제에 부정적인 영향을 미칠 수 있다.dipeulleisyeoneun gyeongje-e bujeongjeogin yeonghyang-eul michil su itda.Deflation can have a negative impact on the economy.