无人❶unmanned
❷depopulated
❸selfservice
～问津。Nobody bothers to ask.or:Nobody is interested./～负责with no one assuming any responsibility/～驾驶飞机unmanned aerial vehicle (UAV);drone/～驾驶高空侦察机pilotless(or unmanned) high-altitude military reconnaissance plane /～区（地带）no man’s land;depopulated zone/～认领的财物unclaimed property/～售票self-service ticketing/～售书处self-service bookstore/～作战飞机unmanned combat aerial vehicle (UCAN) |