yī yán jì chū , sì mǎ nán zhuī
lit. once said, a team of horses cannot unsay it (idiom); a promise must be kept
一
yī
one
言
yán
words
既
jì
already
出
chū
variant of 出[chu1] (classifier for plays or chapters of classical novels)
，
,
驷
sì
team of 4 horses
马
mǎ
abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]
难
nán
difficult (to...)
追
zhuī
to chase
