mǎ shī qián tí
lit. the horse loses its front hooves
fig. sudden failure through miscalculation or inattentiveness
马
mǎ
abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]
失
shī
to lose
前
qián
front
蹄
tí
hoof