無(wú)人?unmanned ?depopulated ?selfservice ~問(wèn)津。Nobody bothers to ask.or:Nobody is interested./~負(fù)責(zé)with no one assuming any responsibility/~駕駛飛機(jī)unmanned aerial vehicle (UAV);drone/~駕駛高空偵察機(jī)pilotless(or unmanned) high-altitude military reconnaissance plane /~區(qū)(地帶)no man’s land;depopulated zone/~認(rèn)領(lǐng)的財(cái)物unclaimed property/~售票self-service ticketing/~售書(shū)處self-service bookstore/~作戰(zhàn)飛機(jī)unmanned combat aerial vehicle (UCAN) |