what does somebody know?used to say angrily that someone’s opinion is wrong or that it is not important 某人懂什么？〔气愤地表示某人的观点不对或不重要〕 What does she know about relationships? 恋爱的事她懂些什么？
what does somebody know?• I'm not going to listen to Martha. What does she know?• My chaplain snorts in derision but what does he know?
→ what does somebody know? at know1(SPOKEN SECT)