Question:

　　DEAR MISS ABC,

　　COULD YOU TELL ME WHAT'S THE MEAN FOR "逻辑主语"?

　　LOOK FORWARD TO YOUR EARLY REPLY. MANY THANKS!

　　BEST REGARDS

　　LINDA

　　Answer:

　　Dear linda，

　　逻辑主语是形式上的主语，没有确切含义。例如：

　　Alough it's melted the snow is still beautful.这句话中的it就是逻辑主语。

　　Yours abc