K字开头的单词或词组
knife-edgekickerkeep sth. a secret from sb.KATkilo-keywordskabobkeep one's mind onknightlykeep tabs onknapkillingkeckkniveskinetic energyKevlarknockoutkryptonkaratknow howkillinglykendallkeystoneketonekick outknockingKenyaknottykeep one's wordskneadkeep one's wordKyotokolakudukite flyingkeep up one's spiritskamekickbackkoakick-offkirkkeep one's head