DOES A BIRD FLY?有什么寓意例如WHEN PIG FLIES!是"不可能"的意思

DOES A BIRD FLY?有什么寓意例如WHEN PIG FLIES!是不可能的意思 Can a bird fly?有什么深层意思吗? why does the bird fly Fly a bird like 连词成句 Just like a bird,fly on the A bird can fly.(改为否定句) Jack sees a bird fly,fly可不可以加ing? Where does a bird live? lt can fly, but it's not a bird什么意思 有一首歌,fly with me .just like a bird..是什么歌有听说是足球赛歌 I saw a bird fly to the north fly ing 是还是 fly 谚语A bird with a broken wing will—fly as highwill和fly之间填什么 A sometimes B always C never D still Does a bird have two _____ (wing)? Bird can fly if i were a bird,i would fly to you There is a bird fly in the sky改错 I w__ I could fly like a bird. I wish I could fly ___ a bird.