悬崖勒马

xuán yá lè mǎ

lit. to rein in the horse at the edge of the precipice (idiom)

fig. to act in the nick of time

悬

xuán

to hang or suspend

崖

yá

precipice

勒

lè

(literary) bridle; halter; headstall

马

mǎ

abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]