飞跑

飞跑	fēi pǎo	to run like the wind / to rush / to gallop
飞	fēi	to fly
跑	páo	(of an animal) to paw (the ground)
跑	pǎo	to run / to run away / to escape / to run around (on errands etc) / (of a gas or liquid) to leak or evaporate / (verb complement) away / off