lulu的用法和样例：
例句
用作名词 (n.)
- Professor Wang is a lulu in the field of psychology among those of his age.
在心理学的研究方面,王教授在同龄人中是出类拔萃的。 - When Casey makes a mistake, it's a real lulu.
当凯西犯错时,那是真的大错。 - Talking about being pretty, our company's new secretary is really a lulu.
要说漂亮，我们公司新来的秘书可是个相貌出众的女孩子。
