快马加鞭

kuài mǎ jiā biān

to spur the horse to full speed (idiom)

to go as fast as possible

快

kuài

rapid

马

mǎ

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

加

jiā

to add

鞭

biān

whip or lash