空运的

例句：

1. 1. The airlines are offering special discounts for international air travel.
   航空公司正在为国际航空旅行提供特别折扣。
2. 2. The cargo was shipped by air to the destination city.
   货物通过空运被运送到了目的地城市。
3. 3. Air freight is a cost-effective way to transport large items over long distances.
   空运是一种经济高效的长途运输大型物品的方式。