Fly的过去式是flew，它是动词，是fly的过去式，意思是飞、飞行。As soon as it saw us，the bird flew away .鸟儿一看到我们，就飞走了。He flew a kite with his classmates yesterday .他昨天和他的同学们一起放风筝。

Flew作为动词，还有乘飞机航行的意思。We flew from London to Beijing .我们从伦敦飞抵北京。

常见的短语有：Fly in降落，fly away飞走，fly up飞起，let it fly让它飞，fly off飞出。、