Your point being? 你是说

154. No smoking!
     不准吸烟
155. - There's no smoking. - Why not?
     -这儿不让吸烟 -为什么
156. Oh, my god... You're in a hospital!
     天啊 您现在可是在医院里
157. Your point being?
     你是说
158. I don't know if you've listened
     我不知道你有没有听说
159. To the surgeon general lately say,
     卫生局长最近常说
160. In the past 20 years,
     过去二十年来

来自《实习医生格蕾 第一季 第三集 Grey's Anatomy S01E03》第 157 行