redeem a promise

• 守约；遵守诺言

redeem a promise的用法和样例：

例句

1. I am doubtful about keeping my promise.
   我不敢确定我能守约。
2. I know he is a man who keeps his appointment.
   我知道他是个守约的人。
3. We must peg them down to the promise.
   我们一定要他们遵守诺言。
4. She was apologetic for not keeping her promise.
   她对自己未能遵守诺言表示歉意。