静态内部类实现单例:The word "dooce" has been coined to describe people who are fired for writing blogs.

The word "dooce" has been coined to describe people who are fired for writing blogs. the opposite word of "difficult" whats the word "genious" definition? what is the meaning of the word "infrastructural"? What`s the meaning of the word "upstairs"? How to learn the word "initiate"? what does the word "rally" mean? What does the word"original"mean? what's the popular word "lol" means? There is ____"U" in the word bus .