無人?unmanned
?depopulated
?selfservice
～問津。Nobody bothers to ask.or:Nobody is interested./～負責with no one assuming any responsibility/～駕駛飛機unmanned aerial vehicle (UAV);drone/～駕駛高空偵察機pilotless(or unmanned) high-altitude military reconnaissance plane /～區(qū)（地帶）no man’s land;depopulated zone/～認領的財物unclaimed property/～售票self-service ticketing/～售書處self-service bookstore/～作戰(zhàn)飛機unmanned combat aerial vehicle (UCAN) |