一言既出，驷马难追 yī yán jì chū ， sì mǎ nán zhuī

DEFINITIONS

  1. lit. once said, a team of horses cannot unsay it (idiom); a promise must be kept

CHARACTERS

一 yī
HSK 1
one; a, an; alone
言 yán
HSK 4
words, speech; speak, say
既 jì
HSK 4
already; de facto; since; then
出 chū
HSK 1
go out, send out; stand; produce
驷 sì team of four horses; horses
马 mǎ
HSK 3
horse; surname; KangXi radical 187
难 nán
HSK 3
difficult, arduous, hard; unable
追 zhuī
HSK 5
pursue, chase after; expel