人有失手，马有失蹄

lit. just as humans make mistakes, so can a horse stumble (idiom) / fig. everyone makes mistakes / even the best fall down sometimes

person; people / CL:個|个[ge4],位[wei4]

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

to cause a loss of (decorum, dignity etc) (used in fixed expressions)

to lose / to miss / to fail

a slip / miscalculation / unwise move / accidentally / by mistake / to lose control / to be defeated

hand / (formal) to hold / person engaged in certain types of work / person skilled in certain types of work / personal(ly) / convenient / classifier for skill / CL:雙|双[shuang1],隻|只[zhi1]

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

hoof / pig's trotters

variant of 蹄[ti2]