在英文的，似乎没有直接表达这个意思的单词。可以根据上下文理解，在翻译成中文的时候，可以适时的用难道。 比如： Jane: Hi David, could you please tell me what is that mean? David: Wow! Everybody knows that. You don't know? Q:嗨，戴维，您能告诉我那是什么意思吗？ A:哎呀！每个人都知道那个。你（难道）不知道吗？ P.S. 请记住，决不能认为，不同的语言之间都有一一对应的单词表示相同的意思！！！

难道 is "No wonder"
For example:

Jane:  I work all day.  In the evenings I go home and watch TV.   On the weekends I spend time with my parents.

Joe: No wonder you don't have a boyfriend.  You never make time to go out and meet other people!

This is the closest I can get: Should you not ...[know]?