how about...? idiom          
A2 informal(用于提出建议)…怎么样? 
used to make a suggestion
  How about the cinema tonight? 今晚去看电影怎么样? 
 How about going to the cinema? 去看电影怎么样? 
  (用于询问另一件事)
used when asking someone about a different thing
  You don't eat meat, do you? How about fish? 你不吃肉,是不是?那鱼呢?