airspace /ˈɛəspeis/ n.[u] 空域；空间：The plane crashed just after entering Mongolian airspace.那架飞机刚进入蒙古领空就坠毁了。The jet had crossed into Russian airspace.那架喷气式飞机进入了俄罗斯领空。The president said that all future violations of our airspace would result in serious consequences. 总统表示，以后任何侵犯我国领空的行为都将导致严重后果。