fly现在分词形式是flying。flying的意思是能飞的。flying的例句：Molly had fought and overcome her fear of flying（莫莉已经努力克服了对飞行的恐惧）。

flying的例句：He was flying in formation with seven other jets（他和其他7架喷气机一起列队飞行）；Eyewitnesses spoke of rocks and shards of glass flying in the air（目击者称空中石块和玻璃碎片四溅）。