XI′AN------Todaymorethan2000peoplehavewrittentheirnames...
问题详情：XI′AN------Todaymorethan2000peoplehavewrittentheirnamesonapaper.Theypromisetouselessenergyandlivealow--carbon(低碳)life.Let′sfollowthem.Cutoffthepowerofyourcomputerwhenyoudon′tuseit.Turnoff...