pledge¹/plɛdʒ; pledʒ/ n [C] 1 a serious promise or agreement to do something or to give something to help someone 誓言; 保证: Several countries made pledges of aid. 好几个国家已作出保证提供援助。 2 take the pledgeold-fashoned to seriously promise that you will no longer drink alcohol 【过时】 发誓戒酒