a man of his word
- giữ lời hứa: to be as good as one's wordto hold to one's promiseto keep one's wordto keep to one's promiseto make good one's promise
- giữ đúng lời hứa: true to one's promise
- không giữ lời hứa: to belie one's promiseto break (violate) one's faithto break one's promiseto depart from one's promise (words)to go back on (upon) one's wordto go back on one's word