We pledge never to tell the secret.
我们发誓决不泄密。
Mary left her ring as a pledge.
玛丽留下她的戒指作抵押品。
Tom asked her to pledge the house as security for a loan.
汤姆要她抵押房子作为贷款担保。
I pledge allegiance to the flag of the United States of America.
我宣誓效忠美利坚合众国国旗。
The new president pledged to reduce taxes for the middle class.
新总统承诺将为中产阶级减税。
She pledged to donate a portion of her income to charity every year.
她承诺每年捐出一部分收入给慈善机构。
They pledged their friendship with a secret handshake.
他们通过一个秘密的手势许下了友谊的誓言。
The company pledged to improve working conditions for its employees.
公司承诺将改善员工的工作条件。
He pledged to give up smoking and has kept his promise for six months now.
他发誓戒烟，到现在已经坚守了六个月。
The candidates pledged to uphold the constitution if elected.
候选人承诺如果当选，会维护宪法。
The bride and groom pledged their love and devotion to each other in front of their family and friends.
新郎和新娘在家人和朋友面前承诺对彼此的爱与忠诚。
The university pledged to increase its investment in research.
这所大学承诺增加对研究的投资。
He pledged to work tirelessly to bring peace to the region.
他承诺将不遗余力地为该地区带来和平。
You made a pledge to serve this country.
你宣过誓为国服务。