yī shī zú chéng qiān gǔ hèn
a single slip may cause everlasting sorrow (idiom)
一
yī
one
失
shī
to lose
足
zú
(bound form) foot; leg
成
chéng
short name for Chengdu 成都[Cheng2 du1]
千
qiān
used in 鞦韆|秋千[qiu1 qian1]
古
gǔ
ancient
恨
hèn
to hate
