covenant

n. 契约，v. 立书保证

court-card, court-house, court-martial, courteous, courteously, courtesan, courtesy, courtesy title, courtier, courtliness, courtly, courtroom, courtship, courtyard, cousin, cousinly, couture, couturier, cove, coven, Coventry, cover, cover charge, cover girl, cover note, cover over, cover up, cover-up, coverage, coveralls, covered, covered wagon, covering, covering letter, coverlet, covert, covertly, covet, covetous, covetously,