快馬加鞭

to spur the horse to full speed (idiom) / to go as fast as possible

rapid / quick / speed / rate / soon / almost / to make haste / clever / sharp (of knives or wits) / forthright / plainspoken / gratified / pleased / pleasant

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

horse / CL:匹[pi3] / horse or cavalry piece in Chinese chess / knight in Western chess

to add / plus / (used after an adverb such as 不, 大, 稍 etc, and before a disyllabic verb, to indicate that the action of the verb is applied to sth or sb previously mentioned) / to apply (restrictions etc) to (sb) / to give (support, consideration etc) to (sth) / Canada (abbr. for 加拿大[Jia1 na2 da4]) / surname Jia

whip or lash / to flog / to whip / conductor's baton / segmented iron weapon (old) / penis (of animal, served as food)