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
선도거래는 미래의 가격을 고정하는 데 사용됩니다.seondogeoraeneun miraeui gagyeogeul gojeonghaneun de sayongdoemnida.A forward contract is used to fix the price for the future.