叩关 Traditional form: 叩關 Pinyin (reading): kòuguān Definitions: to knock at the gate (old) to make an approach to invade to attack the goal (sports) Characters: 叩 - to ask; to bow, to kowtow; to knock 关 - frontier pass; to close, to shut; relation Traditional characters: 叩 - to ask; to bow, to kowtow; to knock 關 - frontier pass; to close, to shut; relation