transportation of people or goods by air (especially when other means of access are unavailable)
动词 airlift:
fly people or goods to or from places not accessible by other means
例句
用作动词 (v.)
They are requesting air drops of foodstuffs to the flooded areas. 他们要求对洪灾地区空投食品。
Cargo chutes dropped with weapons and equipment are colored distinctively to facilitate their prompt and easy recognition while in the air. 空投武器和装备的投物伞是彩色的,以便迅速发现和在空中就能识别。