老馬識途

an old horse knows the way (idiom); an experienced worker knows what to do / an old hand knows the ropes

prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity / old (of people) / venerable (person) / experienced / of long standing / always / all the time / of the past / very / outdated / (of meat etc) tough

way / route / road

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 know / knowledge / Taiwan pr. [shi4]

to record / to write a footnote