keep a promise
... word or woman of her word, a person who can be trusted to keep a promise; a reliable person. 重承諾的人 以上用在版主所問的 "我會信守承諾的"...
男女約會: date因事有約: appointment一般約定: promise一言為定: It’s a deal.守約 keep (our) promise 不守約 not keep a promise
...under observation to keep doing sth to keep sb doing sth to keep a record to keep a promise to keep your word to keep sb in sth to keep sth to yourself to keep...