娱乐城注册送300描述：："when pigs fly"的英文释义为"used to say that one thinks that something will never happen"，翻译过来就是“永无可能，绝不可能”，我们来看几个例句："She will come to your birthday party when pigs fly."“她是不会来参加你的生日派对的，除非太阳打西边出来。”"I asked my boss if I could go on a two-month vacation, he said yes, when pigs fly!"“我问我老板能不能请两个月的假期，他说可以，等到猴年马月。”"John asked Sarah whether she would go to the movies with him, Sarah replied that would happen when pigs fly."“John问Sarah愿不愿意和他一起去看电影，Sarah说那永远不可能发生。”把猪和飞翔联系起来，短语"when pigs fly"就蕴含了一丝幽默意味，经常被用来嘲讽别人的野心太大。在二战老电影《猛鹰突击团》（The Eagle Has Landed）中，当一个德国将军表明他们将很快获得胜利时，情报机关的特工告诉他 "Pigs may fly, General, but I doubt it!"出处：头条号 @Tom实用英语