If I were a bird 和If I am a bird 有什么区别?

If I were a bird 和If I am a bird 有什么区别? if i were a bird If I were a bird 中文 为什么是If I "were" a bird? If I were a bird 作文 If i were a bird,i could fly high.Were i a bird,i could hard If I _____ a bird,I would fly around the world.A.am B.were C if i were a bird,i would fly to you 省略if的虚拟语气if i were a bird可以省略成were i a bird吗 If you are a bird,I am a bird应该怎么翻译 If I were a Bird有几个版本啊?有钢琴版的么? 《我真的受伤了》和《IF I WERE A BIRD》的关系