구동driving 구박abuse; harrassment 구사competence 구사력competence 구제extermination; destruction 구충제anthelmintic 선구자pioneer 선구적pioneering; trailblazing 승승장구being on a fast track; going from strength to strength

횡단보도crosswalk; crossing 초보first step; beginner level 초보자beginner; novice 보도sidewalk 보행자pedestrian; walker 산보walk; stroll 양보concession; yielding 퇴보going back; walking back; withdrawal 행보walking; step; pace 활보stride; prancing; strut