Worker
来自Big Physics
wiktionary
From Middle English werkere, worcher, wercher, equivalent to work + -er.
etymonline
worker (n.)
mid-14c., "laborer, toiler, performer, doer," agent noun from work (v.). As a type of bee, 1747. As "one employed for a wage," 1848. Old English had wyrcend "worker, laborer."
