yī yán jì chū , sì mǎ nán zhuī
lit. once said, a team of horses cannot unsay it (idiom); a promise must be kept
yī yán jì chū , sì mǎ nán zhuī
lit. once said, a team of horses cannot unsay it (idiom); a promise must be kept
jūn zǐ yī yán , sì mǎ nán zhuī
a nobleman's word is his bond (proverb)