鸟不会飞的不能飞行的。用于指企鹅等某类鸟 Incapable of flying. Used of certain birds, such as the penguin.
飞机各种能够飞行的带翼交通工具，通常比空气重，用喷气式发动机或螺旋桨驱动 Any of various winged vehicles capable of flight, generally heavier than air and driven by jet engines or propellers.
我们飞行的高度是35000英尺。 We're flying at 35000 feet.
要射中飞行中的小鸟，尤其是高空飞行的小鸟，非常困难。 It is difficult to shoot a flying bird, especially a small bird flying high up in the sky.
