Verb:

1. drop (an object) from the air; unload from a plane or helicopter

airplay唱片的播送airn.空气；天空；空中；感觉；神态；曲调；装腔作势v.晾干；使通风；广播Air Defense Command Regulation防空司令部条例Air-Launched Sounding Rocket空中发射的探空火箭Air Force Training Category GG类空军训练air jet impingement technology气体射流冲击技术air-raid sheltering basement人防地下室Air Craft Research Association飞行器研究协会air- cushioned surge chamber气垫式调压室air cooling steam turbine unit直接空冷机组air-lift reverse circulation气举反循环Air Force Cost Analysis Agency空军费用分析局

1. They are requesting air drops of foodstuffs to the flooded areas.
   他们要求对洪灾地区空投食品。
2. That is a drop of grain sacks from an aircraft to the hungry people on the island.
   那是从飞机上空投给岛上饥民的一袋袋粮食。