What a blue sky!中的sky为什么能加a?

What a blue sky!中的sky为什么能加a? What a blue sky!中的sky为什么能加a?感叹句中不是可数名词前加a吗? what the sky is blue BLUE!SKY blue sky In a blue sky ,live a blue life.. In a blue sky ,live a blue life. 用a deep blue sky造句 ______ blue the sky is!用what还是how 翻译英语句子why is the sky a blue color? A giant blue bird is in the sky. The sky still as blue,just a many cnblue blue sky 歌词 BLUE SKY怎么样 Blue Sky Black 歌词 blue-sky什么意思? The sky is blue Clear Blue Sky 歌词