空中: in the sky; in the air; aerial; overhead; midair 短语和例子在空中翻筋斗 make a somersault in midair; 在大战期间伦敦受到来自空中的袭击。 during the great war london was attacked from the air. 首次在空中航行的飞行器是气球。 the first
关: Ⅰ动词1.(使开着的物体合拢) close; shut 短语和例子关窗户 shut the window; 他随手轻轻地把门关上了。 he closed the door softly behind him.2.(圈起来) shut in; lock up 短语和例子把鸡关在栅栏里 shut the chickens in a pen; 关进监狱 lock up (in p
