極東: the Far East

work done for free, unpaid work, uncompensated work / work done in vain, work with no favorable end result

to work for free, to work without pay or other compensation / to work in vain, to work with no favorable end result

(archaic, grammar) any word that declines or conjugates / (archaic, grammar) more specifically, a verb

郵便葉書: postcard

a postal code, a zip code

postcard

registered mail

mailbox / letterbox, post box

a post office box (box hired as collection point for mail)