英语用法问题：英语口语中有个 what a small world 或者small world,我们汉语说“这个世界真小

"what a small world"有语法错误吗? what a small world 有语法错误吗? 英语作文this is a small world It's a small world after all .汉语意思 我爱唐人街 WHAT A SMALL WORLD怎么样 In this world ,I just a small small mouse It’s a small world歌词 it's a small world 中文 歌词 it is a small world isnnt it? It's A Small World 歌词 It's a small world after 谁可以帮我写篇what a small world的文章,长一点