after I read this article, I want t talk something about troublesome language. when I first time came to American. one day, one of my America classmates asked me to ate ice-cream with she, I told she that I have a menstruation, she looked at me and can't understand what am I saying, and then I explain a long time to she, she says in American no one say like that, they will say I have a period. actually, I just search word on the dictionary. it's the kind of joke for slang language