The airborne radioactive particles have covered a huge area of Russia.依靠空气传播的放射性粒子覆盖了俄罗斯一大片地区。
Airborne troops were dropped by parachute behind enemy lines.空降部队伞降到敌后阵地上。
The old plane had great difficulty getting airborne (= rising into the air).这架老掉牙的飞机起飞非常困难。