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
증권업은 금융 시장에서 중요한 역할을 합니다.jeung-gwon-eob-eun geun-yung sijang-eseo jung-yohan yeoghal-eul hamnida.The securities industry plays an important role in the financial market.