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
복합관계사는 문장에서 두 개 이상의 절을 연결하는 역할을 합니다.bokhapgwangyesaneun munjangeseo du ga isang-ui jeoreul yeon-gyeolhaneun yeogaleul hamnida.A compound relative serves to connect two or more clauses in a sentence.