擔保的英語翻譯：

guarantee; assure; ensure; vouch; warrant
【經】 assurance; backing; bail; endorsement; guarantee; hypothecate
warranties

授權的英語翻譯：

accredit; authorization; authorize; empower
【計】 authorizing
【經】 authority; authorization; authorize; delegation of authority

違約的英語翻譯：

break a contact; break a promise
【經】 act in violation of the stipulation; breach of contracts
break an agreement; break one's enaggements; default; in default