aindexaeriality./air-ee-al-i-tee, ey-eer-/US // ˌɛər iˈæl ɪ ti, eɪˌɪər- //高空作业,高空飞行,高空活动,高空Definitionsn.noun · 名词1.›unsubstantial quality.Level 5More words in a →